Dragon Survival

-Refactored how dynamic animations are handled (body/head/tail movement) to use partial ticks rather than doing our own custom interpolation. This fixes a few issues:

1. Dynamic animations should move more smoothly and be more consistent as the framerate changes.
2. When players become "tracked" (entering your vision) their current animation state should be correctly synced immediately (no more desync on these dynamic animations).
3. When the game pauses, dragon animations now properly pause (and resume!) rather than weirdly continuing to interpolate.
4. Mods that rely on partial ticks to replay state (mostly replay mods do this) will now behave correctly with the dragon's animations. Enjoy, content creators!
5. -Fixed a bug with animations overall in certain UI screens (namely the inventory and altar screens) being stuttery when in multiplayer only.