Add d100 images

Add standard/d100 images
Add 01 through 10 d100 images
v 1.3.3 Avatars, d100, code cleanup

- Avatar upload.  Note: if your image isn't 256 x 256, you're gonna have
a bad time.
- d100 dice available
- make selection overlays (circle, hex, x) align to dice correctly
- swap settings and lower third GUI positions
- some code clean up and refactoring (split make overlay function,
lowercase some variables that aren't constants, call things overlay and
not layovers, etc)
v 1.3.3. Avatars, d100, code cleanup

- Avatar upload.  Note: if your image isn't 256 x 256, you're gonna have
a bad time.
- d100 dice available
- make selection overlays (circle, hex, x) align to dice correctly
- swap settings and lower third GUI positions
- some code clean up and refactoring (split make overlay function,
lowercase some variables that aren't constants, call things overlay and
not layovers, etc)