Adds support for font_add()

[tabularelf]

With some help from Scott-1 (I do not have their Github), we've managed to make a version of font_add() that works perfectly. This specific version included is cleaned up and removes all of the unnecessary stuff.

This font_add() also does not support swapping out glyphs like regular draw_text() would. (Adding in support for that wouldn't be impossible, just not fast.) This also doesn't fetch all of the information and stores the glpyh data (respect first and last arguments from font_add().)

The scripts included: __scribble_font_delete_from_file, __scribble_font_add_parse_from_file, __scribble_font_add_from_file.

The test object: obj_test_font_add_from_file

[JujuAdams]

Thank you for the work you and Scott have put into this