* rename getSkin rsapi to getSkeleton
* Added animation runelite api. Also re-named method "getSkin" to "getSkeleton", because it is a more suitable description.
* re-named "skin" variable to "skeleton"
* added frames.java to runelite api
* added DualNode.java to runelite api
* made RSSkeleton extend Skeleton
* .
* removed unused imports
* checkstyle corrections
* put copyright notice back which i accidentally deleted.
* Added some descriptions
* removed type in description
* .
* added licence headers