Remove add-file, remove-file, and reset-context commands

[cvchaparro]

Description

Remove the add-file, remove-file, and reset-context commands from the active-context plugin.
Additionally, remove the files, and definitions sections from the state.json file.

Linked Items:

Closes #576

Type of change

• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Feature improvement

Feature Additions

• None

Bug Fixes

• Update GitHub CodeQL analysis action version from v1 to v2.

Breaking Changes

• Remove add-file, remove-file, and reset-context commands.
• Remove files, and definitions from active context state file.

Feature Improvement Changes

• None

Checklist:

• Updated documentation accordingly.
• My changes generate no new warnings.
• Have updated new and existing unit tests accordingly.
• Linked associated items to be closed.
• Have you bumped the version if there will be a release?

[Coffee2Bits]

Looks good! It's nice not running into the stickier edges of the persistence.

Import state seems a dash useless for now, but I don't think it'll be an issue leaving it there while we continue to improve our understanding of the value we need to drive with persistence.