Cover the current behavior of keyframe insertion with unit tests,
so the changes planned in #113278 are less likely to break things.
Unit tests added:
InsertKeyTest
very basic test to ensure keying things by
name or with a keying set adds the right keys
VisualKeyingTest
check if visual keying produces the
correct keyframe values
CycleAwareKeyingTest
check if cycle aware keying remaps
the keyframes correctly and adds fcurve modifiers
Pull Request: https://projects.blender.org/blender/blender/pulls/114465
Christoph Lendenfeld
40dccc1975