Added fancy graphics for seed
New component that can hold a text string
Added initial support for seed input
Code clean up
Added so new seed can be entered
Added so you can hold in backspace
Merge branch 'seed' into dev

Conflicts:
	se/chalmers/roguelike/Engine.java
	se/chalmers/roguelike/Entity.java
Merge branch 'dev' of https://github.com/ravertass/KandidatRoguelike into dev