Create: Assembly Animations

2.1.0

Added:

• new animation: Copycat, every block turns into an empty copycat and back
• resource pack animations can hide blocks with hide in their json

Fixed:

• fixed sounds at the very end of an animation not playing at high speed
• fixed a resource pack animation never ending when its duration formula gives no number
• fixed effects of resource pack animations mixing up a value with a drawing field of the same name