Add bit_setify_macro (Closes #85)

[jwaxy]

This pull request renames bit_setify to bit_setify_enum and implements a new feature "bit_setify_macro". Closes #85

Here's an example on it's usage:

bindgen.sjson:

inputs = [
    "."
]

rename = {
    "NX_Flags": "InitFlags"
}

bit_setify_macro = {
    "NX_Flags": {
        "member_prefix": "NX_FLAG_",
        "new_enum_name": "InitFlag"
    }
}

C header file:

#include <stdint.h>

typedef uint64_t NX_Flags;

#define NX_FLAG_VSYNC_HINT              (1 <<  0)  ///< Enable vertical synchronization hint
#define NX_FLAG_FULLSCREEN              (1 <<  1)  ///< Create window in fullscreen mode
#define NX_FLAG_WINDOW_OCCLUDED         (1 <<  2)  ///< Window is occluded by other windows
#define NX_FLAG_WINDOW_HIDDEN           (1 <<  3)  ///< Create window initially hidden
#define NX_FLAG_WINDOW_BORDERLESS       (1 <<  4)  ///< Create borderless window
#define NX_FLAG_WINDOW_RESIZABLE        (1 <<  5)  ///< Window can be resized by user

Resulting Odin file:

package test

InitFlag :: enum {
	VSYNC_HINT        = 0,
	FULLSCREEN        = 1,
	WINDOW_OCCLUDED   = 2,
	WINDOW_HIDDEN     = 3,
	WINDOW_BORDERLESS = 4,
	WINDOW_RESIZABLE  = 5,
}

InitFlags :: bit_set[InitFlag; u64]

I'm open for suggestions regarding code refactoring, renaming or other changes.

[karl-zylinski]

Thank you. I will review this sometime soon. I'm a bit swamped and also sick right now, hehe

[jwaxy]

No worries, get well soon!