v0.102 released with title screen and new code

Day 2 of Code is Just Season 3 sees the release of Chimera 2 v0.102

There's now a title screen and you can quit to the desktop.

There have been some little fixes:

- colours now fade in and out properly on room change

- movement is now purely orthogonal

There will be a new code in the Code is Just Twitter thread tonight, which you might find quite handy!