Investigate compressed anim scale types and inherit_scale

[ScanMountGoat]

Testing bone chains with scale values set don't seem to render any differently when using any of the scale types, including None. The "inherit_scale" option may toggle some other setting related to transforms.

• [x] add tests for reading a compressed transform animation for each of the four scale types
• [x] test reading uniform scale with different scale xyz scale values
• [x] test reading const scale from non const scale values
• [x] remove the inherit_scale field and merge compensate_scale with the track itself
• [x] fix handling of uniform scaling for UvTransform
• [x] infer compression flags from the track values and add tests

[ScanMountGoat]

This will require more tests with rotations and non uniform scaling to test for how shearing is handled in game.

[ScanMountGoat]

After additional testing, the scale types separately indicate uniform vs non uniform scale and const vs regular scale. This introduces a number of edge cases that need to be tested separately using compressed buffer tests.