Changes to character rigging. Also CMake now respects ini-config
structure (although in the future, the lib file should be used. Check
installation in CMake for macOS/*NIX).

Balance skirt length on the sides.

Lay out plans for graphics.

Fix upper body of character.

Start effort on rigging right arm of character.

The SDL.h include is only valid for macOS because of memset_pattern4, on
Windows it is not required.

The character and weapon sprites have been updated.

Add belt to skirt..

Add shading for 1st character.

Add coloring, fix head for 1st character.

Split head components into multiple layers.

Define other playable characters.

Improve character sprites.

Add second character.

Improve sprites.

Add joints to character sprite.

Include characters sprites.