faster collisions

Squashed commit of the following:

commit 053c06ea29702728e2605899a2b47edac647c459
Author: Alvie Rahman <alvierahman90@gmail.com>
Date:   Sat Dec 3 16:09:51 2022 +0000

    begin documentation on codebase: sprite metadata

commit 435f0c62743112818594f4b1a902d90d1f60823a
Author: Alvie Rahman <alvierahman90@gmail.com>
Date:   Sat Dec 3 16:05:37 2022 +0000

    formatting, mostly

commit f338476aaf4c33081969b18b2a6d13a3639571cd
Author: Alvie Rahman <alvierahman90@gmail.com>
Date:   Fri Dec 2 23:18:27 2022 +0000

    way faster collisions

docs/res/sprites_metadata.c.txt

@@ -0,0 +1,9 @@
+sprite.c:
+
+struct Sprites
+
+collision_offset = {
+	quad1x1, quad1y1, quad1x2, quad1y2,
+	quad2x1, quad2y1, quad2x2, quad2y2,
+	quad3x1, quad3y1, quad3x2, quad3y2
+}