* Named constants for SGB town palettes
* Correct collision_type_table.asm ID comments
* Documented 2 bugs, and 3 functions.
* Adjust sprite constants (duplicate sprite IDs reference the latest definition of it instead of the earliest)
---------
Co-authored-by: Narishma-gb <194818981+Narishma-gb@users.noreply.github.com>
Co-authored-by: Alieneer <37123222+BreavyTF2@users.noreply.github.com>
Co-authored-by: Rangi <sylvie.oukaour+rangi42@gmail.com>
* All programs (rgbasm, rgblink, rgbfix, rgbgfx) support `-W` warnings
* Use `rgbgfx -c dmg` for grayscale 1bpp/2bpp
* Use new string functions and operators
* Use `?` to silence nodes in warning/error location backtraces
* Use single-quoted character literals for numeric values
* Do not warn about overwriting bytes in the corrected header
