[ETF] Entity Texture Features

• rewrote the Random Property reading code to be more object-oriented, stable, and simplified. This also allows other mods to add new random properties for easy use in ETF & EMF. Random property code now only stores the entities initial conditions if they have been tested by that random property already, reducing memory usage.
• fixed the name property not respecting text formatting codes e.g. "name=\u00a74\u00a7oName"
• fixed crashes during random entity property testing in ETF and EMF, all random property testing should be stable even with unexpected failures.
• a lot of source code shuffling around and the inclusion of JavaDocs for API relevant classes.

1.20.2 update