* [ANE-2484] Download ficus in vendor_download.sh

* [ANE-2484] Listen to shellcheck's wisdom

* [ANE-2484][ANE-2503] Actually call Ficus, use `--x-snippet-scan` as a flag. (#1573)

* gradle: exclude constraints when retrieving dependencies (#1563)

* [ane-2575] scan all layers for os info (#1566)

* scan all layers for os info

* add test

* lint

* accidently on purposed

* whitespace

* typo

* update changelog

* no need to log

* prepare for release

* WIP

* WIP

* Get ficus wired in and at least vaguely tested. More to do to get tests to be coherent.

Now we're cooking with gas:
```
Running Ficus analysis on /Users/jclemer/wam/
[DEBUG] Executing ficus
[DEBUG] Ficus returned 4 errors, 0 debug messages, 1 findings
[WARN] ERROR fingerprint: Read(
      Custom {
          kind: InvalidData,
          error: "binary file detected: /Users/jclemer/wam/.git/index",
      },
  )
[WARN] ERROR fingerprint: Read(
      Custom {
          kind: InvalidData,
          error: "binary file detected: /Users/jclemer/wam/.git/objects/pack/pack-183ce412024750728f9349e31668d39ee389840e.idx",
      },
  )
[WARN] ERROR fingerprint: Read(
      Custom {
          kind: InvalidData,
          error: "binary file detected: /Users/jclemer/wam/.git/objects/pack/pack-183ce412024750728f9349e31668d39ee389840e.pack",
      },
  )
[WARN] ERROR fingerprint: Read(
      Custom {
          kind: InvalidData,
          error: "binary file detected: /Users/jclemer/wam/.git/objects/pack/pack-183ce412024750728f9349e31668d39ee389840e.rev",
      },
  )
FINDING fingerprint: {"analysis_id":15}
Ficus analysis completed successfully with analysis ID: 15
```

* Fixing up formatting

* [ANE-2484] Add ficus to extra-source files

* Fix FICUS_ASSET_POSTFIX to match changed release

* Fix Windows postfix for changed release

* Change themis arch in suffix

---------

Co-authored-by: Jeremy Gonzalez <jeremy@fossa.com>

* Caveperson debug vendor_download

---------

Co-authored-by: Jeremy Gonzalez <jeremy@fossa.com>