Reverse the expected order of one test
now that we have deterministic ordering of single partitions.

Move the code for WindowSegmentTree::EvaluateInternal to WindowSegmentTreeState.
This hides the implementation details and prepares to fix some memory leaks.

Fix the right side memory leak.
Avoid unnecessary per-chunk memory allocation.

Plumb the setting through and throw if it is not supported.

Change API to pass frame lists instead of window setting.

Support the EXCLUDE modifiers for COUNT(*).

Use swap instead of copying.

Implement exclude syntax for array_agg and friends.
Fix non-contiguous NULL detection.

Use a state machine to walk the frames and cover all the deltas.

Use pointers to existing frames instead of copying them.

Make the new exclude clause member optional so we don't have to bump the file version.

Still broken but should be closer. Probably just needs a `GetDefault`?

Updated json file with default value. Works now.