Spotless Creation

[WaitingIdly]

changes in this PR:

• update the GTCEu buildscript
• enable spotless
  • ensure there is an empty line after each class declaration and before the closing brace.
  • change the @Target({ /* No targets allowed */}) comment for some documentation annotations to be @Target({}) // No targets allowed.
  • disable spotless for a segment of code in AltarInputOrder.
  • apply spotless to all of the files inside src/main/java/com/cleanroommc/groovyscript.
  • fixes a handful of files having the incorrect line ending.
  • fix inconsistent indentation.
• current downsides:
  • some equations or methods which formerly took up multiple lines have been compacted into a single longer line, which may be harder to read.
  • when using an instanceof with a pattern variable, if the class being compared against has generics, such as Class<?>, the variable name will be Class<?>here without spaces.