Allow application of more than one type of animation to loaded model

[Samevi]

Some models, like the effect models in Fire Emblem Echoes: Shadows of Valentia, require Skeletal, Material and Visibility animations to be playing simultaneously for full effect. Currently, CTR studio is unable to play all types of animation simultaneous to one-another.

SPICA already supports doing this, but lacks features that CTR studio has like replacing textures.