Function Compiler

Adds commands:

• effect
• experience add/xp add
• experience set/xp set

Adds selector arguments: distance, level, name

Fixes bugs:

• gamemode selector overwrites previous gamemode selectors
• Rotations with relatives angles cause an exception at runtime (affects execute rotated <rotation> only)

Adds commands:

• execute rotated as
• execute rotated
• execute positioned as

Fixes bugs:

• team selector overwrites previous team selectors
• team selector fails to compare team names properly
• Positions fail to parse with a ~ without a number after it
• Using objectives which don't exist causes an exception when running the command
• Using a command that accepts a scoreholder can break at compile time (affects execute if score only)
• Comparing two scores together reverses the operator (a <= b became b <= a in compiled code)
• 1.20.1 code fails to call external functions due to missing access widener entry
• Some selectors fail to parse properly with whitespace

Adds commands:

• difficulty <peaceful|easy|normal|hard>
• weather

Improved stability

• Removed Kotlin from dependencies
• Fixed some bugs

Adds commands:

• scoreboard players reset

Adds selector arguments: x_rotation, y_rotation

• Add telemetry for diagnostics and exceptions

• Updated codebase to be more modular (adds 1.20.1 support :D)