Metamorph

This patch update adds a lot of random features.

Compatible with McLib 2.3. It doesn't mean that future versions of McLib would be incompatible, but older versions are most likely incompatible.

• Added OP access only to entity selectors
• Added automatic enabling of Use target when picking Blockbuster's particle or snowstorm morphs
• Added interpolation preview to animation component
• Added an option to disable rendering of body part axes (developed by Chryfi)
• Added text formatting to label morph (for example Hey [6man[r! highlights man as gold color, suggestd by Centryfuga)
• Added background color option to label morph (suggestd by Sbriser)
• Added look at player option to label morph (suggested by Sbriser and Jvonlins)
• Changed animation duration field to increment 1, 2, 5 (weak, normal, strong)
• Changed body parts merging to correctly handle transition of non equal amount of incoming body parts
• Improved entity selectors (intant application of selectors upon newly spawned mobs, and instant update on mobs when changing)
• Fixed block morph Z-fighting
• Fixed NPE in Metamorph's name renderer (reported by Berm1zzov)