Remy 8d3980bbe9 Refactor collection to set in anim composer (#1076)
* returns an unmodifiable set when retrieving the available animation names and available animation clips instead of an unmodifiable collection. fixes: #1070

* remove unnecessary set wrapper.

* Remove the unnecessary creation of a new hashset everytime getAnimClips() is called.
2019-04-24 16:11:51 -07:00
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