Blender Git Loki

Feature Collada: Support for Animation Clip export

1.) Added one extra level to the exported animations
such that now all scene animations are enclosed:

<Animation name="id_name(ob)_Action">
<Animation>...</Animation>
...
</Animation>

2.) Added support functions for this extra level:

open_animation_container(bool has_container, Object *ob);
close_animation_container(bool has_container);

3.) Added Function for organizing unassigned exported animations

openAnimationWithClip() (not uesed yet)

4.) Added support function to check if a sampled matrix animation
is actually animating

bool is_flat_line() (not used yet)