Function Compiler

Update function compiler to have multiple compilation stages, for better code generation

Adds support for macros in [tag] selector

Fixes bugs:

• Function runs with wrong ordering when calling a vanilla function from compiled function (affects 1.20.3+)
• Translatable text arguments with custom style don't generate style data
• execute if|unless function inside vanilla functions while calling compiled function runs too many times (affects 1.20.3+)
• Forking behaves as on bedrock instead of java
• Not all functions are found, some of the time

Adds commands:

• scoreboard players enable
• title
• tellraw

Adds base for macro support, macros are only supported for score holder names, for example $scoreboard players set macro_$(test) objective 1

Adds basic text support (only text, keybind, and translate component types, hoverEvent and clickEvent formatting options are also not supported)

Fixes bugs:

• execute unless score runs on the wrong conditions
• scoreboard players operation does not try creating the score if it doesn't exist

Adds commands:

• execute anchored
• execute on vehicle
• return <value>
• return fail

Adds 1.21 support

Adds selector: @n (1.21 only)

Adds local coordinates

Adds /mcfc for enabling/disabling running compiled code, requires permission level 3 to use

Adds commands:

• data modify storage <storage> <path> set value <value>
• execute store result storage <storage> <path> int 1
• function (with argument support)

Adds selectors: @p, @r

Adds selector argument: sort

Adds nbt support internally

Adds nbt paths: foo.bar, foo[0]

Adds a better instruction optimizer

Functions compile in the background now

Fixes bugs:

• @e returned dead players
• Commands which remove entities from the world broke selectors
• execute align does not work
• Using /function in non-compiled functions does not run the compiled variant (affects 1.20.4+)