User defined macros w/ variables

[DerelictDrone]

Definition syntax:
#macro (name) (number of arguments) (code using $(arg num) to refer to argument)\n
Use syntax (once defined):
(name) a, b, c

Example code that recreates the compiler's own hardcoded vec2f macro

Generated code comparison

Macros can be referenced by other macros, at nearly no slowdown to compile time (tested with a chain of 60 macros referencing the next macro, and 16 uses of 4 defined macros of varied size, all compiles were under 1s) unless the macro is self-referencing infinitely, I can't seem to find a way to solve that one and am open to suggestions for solving before this is considered merge-worthy

The plan was to replace the inbuilt vector types with an include to a file containing definitions that recreate their use, so you can replace their names with structs to use them in C-style syntax w/ variables, but eh, that can come later.