XanderStuff

Results 2 issues of XanderStuff

I noticed `SimpleFixes` doesn't have a method for renaming Entities like it does for Items, Blocks, and Biomes. This PR adds that.

final-comment-period
t: new api
s: waiting for test
library: misc

This would wrap the entire left-hand or right-hand side of a comparison, which could be chained by multiple mixins. Example: ```java @ModifyComparisonArg( method = "targetMethod", comparison = "LESS_THAN_OR_EQUAL", argument =...