* add v2 folder

* create structure and paste v1 specs for now

* TAO V2 support in 07 client (#1137)

* deprecate delay period params

* add params into clientState

* fix comment

* include PR link in history

* fixes

* fix comment

* fix modified field

* Copied README.md to v2/ while preserving history

* Reverted README.md to commit 825d47d

* fix deadlinks

* rm v1 deprecation references

* del v2 folder and readme

* cp v1 spec into TAO_V1_README

* apply v2 changes

* fix dead links

* fix deadlinks 2

* fix image links

* fixes

* fixes

* fix link to v2 version

---------

Co-authored-by: Stefano Angieri <stefano@interchain.io>

* 02-client-TAOv2 (#1147)

* rm delayPeriods

* add msg and hanlder

* fixes

* del things

* fix order

* typos

* review comments

---------

Co-authored-by: Stefano Angieri <stefano@interchain.io>

* 24-host: Reduce provable surface area to only packet flow keys (#1144)

* start 24-host by removing unnecessary requirements and moving some provable keys to private keys

* fix layout rendering

* fix links

* address Stefano's comments

* high level path space and commitment specification

---------

Co-authored-by: Carlos Rodriguez <carlos@interchain.io>

* 04-Packet-Flow-v2 (#1148)

* start removing channel refs

* add counterparty refs

* introducing multi-packet data structure

* add multi-data packet

* introduce packet handlers

* send packet handl

* change packet commitment paths

* fix paths

* mod sendPacket

* mod receive

* allign with new packet structure

* mod ack and paths

* change counterparty def

* discussions-related-fixes

* add sketch packet flow

* rework + ack logic

* fixes + timeout logic

* start addressing review

* addressing review comments

* fixes

* client-creation-registration

* ante-error-post conditions sendPacket

* fixes

* handlers pre-error-post conditions

* fixes

* add mermaid diagrams, fixes

* router fixes

* improvements and fixes

* minor fix

* improvements

* adding considerations

* add condition table

* change condition table format

* multi-payload,paths,router,acks fixes

* improve createClient conditions

* table fix

* registerChannel table

* fixes

* improvements

* fixes

* setup fixes

* diagram fixes

* fix diagram

* test fix

* two and three step setup

* send-receive conditions

* router fixes

* createChannl conditions

* register table fixes

* conditions tables

* table fixes

* self review

* self review

* add soundness and correctness

* self review

* self review

* fixes

* minor fixes

* rename folder

* polish

* change registerChannel to registerCounterparty

* Apply suggestions from code review

Co-authored-by: Aditya <14364734+AdityaSripal@users.noreply.github.com>

* address review comments

* rm counterparty channel id check in send packet

* mod writeAck function

* delete packet once async ack has been written

* fix callbacks

* fixes

* fix mermaid

* rm relayer from SendPack

* Apply suggestions from code review

---------

Co-authored-by: Aditya <14364734+AdityaSripal@users.noreply.github.com>

* ics20-tao-v2-support (#1157)

* start v2 changes

* mod onRecv callback

* mod revert,refund

* wip refactor

* wip-packet-reasoning

* callbacks interface update

* fixes

* v2Tao support in v1

* Apply suggestions from code review

Co-authored-by: Aditya <14364734+AdityaSripal@users.noreply.github.com>

* fix sequence type

* unrmarshal utility function

* fix write ack

* fix revertInFlightsChanges

* fixes

* rm relayer from onSend

* Apply suggestions from code review

---------

Co-authored-by: Aditya <14364734+AdityaSripal@users.noreply.github.com>

* ICS24: Restructure provable packet keys (#1155)

* imp: note that commitments must be lexographically ordered to maintain soundness (#1153)

* restructure ibc keys

* add value instead of redundant provable store column

* chore: remove myself as codeowner (#1156)

* Fix variable name (#1162)

* fix link and put new provable keys into 04-channel spec

---------

Co-authored-by: colin axnér <25233464+colin-axner@users.noreply.github.com>
Co-authored-by: Christoph Otter <chipshort@tutanota.com>

* add timeoutTimestamp in forwarding (#1163)

* Packet Spec: Hash App data rather than standardizing encoding (#1152)

* add packet and acknowledgement structs and commitment details

* add CBOR as suggested encoding and SENTINEL_ACKNOWLEDGEMENT value

* explain each field in the code

* change id to channel

* switch cbor encoding to hashing in packet commitment

* switch cbor encoding to hashing in acknowledgement

* Apply suggestions from code review

Co-authored-by: sangier <45793271+sangier@users.noreply.github.com>

* add recursive hashing suggestion from amulet

* prepend protocol byte

---------

Co-authored-by: sangier <45793271+sangier@users.noreply.github.com>

* Move PACKET.md (#1166)

* move PACKET.md to the right folder

* linter

* linter

* ICS4: Create 32 byte commitment (#1168)

* move protocol version inside final hash

* Update spec/core/v2/ics-004-packet-semantics/PACKET.md

Co-authored-by: DimitrisJim <d.f.hilliard@gmail.com>

---------

Co-authored-by: DimitrisJim <d.f.hilliard@gmail.com>

* ICS4: Event Emission Specification (NO PSEUDOCODE) (#1172)

* event specification

* specify events for channel creation

* add client id to register counterparty events

* rename emitLogEntry to emitEvents

* address reviews

* fix typo

* remove explicit event implementation and include event writeup on what should be included

* continue changes

* add packet handler to v2 spec

* move to v2 folder in top-level spec

* simplify the spec

* rename folder for more visibility

* specify client handler specification

* cleanup ICS-2 and start with ICS24

* ics5 port specification

* halfway through ICS26

* specify packet callbacks

* move folders to core

* fix table

* write overview doc

* add link to payload docs

* header corrections

* address marius reviews and lint lists

* revert non-core changes

* revert client changes

* satisfy linter

* fix links

* fix more linting issues

* lint

---------

Co-authored-by: sangier <45793271+sangier@users.noreply.github.com>
Co-authored-by: Stefano Angieri <stefano@interchain.io>
Co-authored-by: Carlos Rodriguez <carlos@interchain.io>
Co-authored-by: colin axnér <25233464+colin-axner@users.noreply.github.com>
Co-authored-by: Christoph Otter <chipshort@tutanota.com>
Co-authored-by: DimitrisJim <d.f.hilliard@gmail.com>