0.2.8.0 "Destroyer of All"

This release mostly adds the random number generators that were added in jdkgdxds 0.2.7 and 0.2.8, and changes the syntax used in serialized random number generators so it can be easier to transmit them between ShaiRandom (in C#) and jdkgdxds. The serialized form should also be shorter. This can also ser/deser Class objects now, which can be useful for various reflection-related code.