v2.2.1 - 2022.6 Maintenance Release

This is a minor maintenance release for 2022.6's addition of Feather and the ref type.

Changes

• Added debug value handler for the ref type and provisions for future new types.

Bug Fixes

• Fix declared return types and argument counts for the following functions:
  • __gma_debug_value__
  • assert_doesnt_contain_exact_2d
• Fix some Feather complaints on the test suite