Node-based graphing bytecode transformer

[Ampflower]

Goals

• Implement a node-based view of the relations between producers & consumers, including any stack mutations such as DUP, SWAP and POP.
• Be able to work around IF*, *SWITCH, GOTO and JSR instructions.
  • Verify at junctions that the stack is even and all the types are consistent.
  • Note that the stack must be consistent at junctions.
  • Locals maybe freely mutated, requiring scope handlers to capture what may have changed..
• Static analysis of variables to attempt to prove validity at consumers?
  • Mixin does interfere a fair bit here however. This maybe only useful as a warning rather than a hard error.
• Allow better mod compatibility, see Crash with Fabric LANd #18
• Introduce acid tests as extreme units of verifying that the node view is correct.
  • A fair amount may have to be created via Jasmin as Java doesn't allow a sufficient amount of control for stack-based execution over locals-based.
  • Kotlin may also be a decent option due to a fair amount of instructions

Non-goals

• Turn Anti-Xray into a giant transformer library. Don't touch the internals.

Fixes #18