Blender Git Loki

Fix T63031: Keyframing Annotations doesn't work

By design the annotation parameters must not be animatable.

Annotations are designed to take notes, not to create animations, so any animatable parameters have been flagged as non-animatable.

Note: As some properties are shared with grease pencil, I had to duplicate one property (adviced by @mont29) to keep grease pencil animatable but annotations don't.