* Add empty snake scenario
* Move snake head around
* Snake now has a tail
* Rest of logic implementation
* Ctrl K D layout fixes
* Game gets faster as you collect more apples
* Adjust speed increase rate down
* Use white on black for snake and border and red for apple
* Fix ScenarioTests not Disposing Scenario
* Add disposes and fix to use LineCanvas.GenerateImage
* Fix stack overflow, doh!
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Co-authored-by: Tig <tig@users.noreply.github.com>
