compiler warning and HLint remarks
moved user event handling into UI/Callbacks.hs
Merge branch 'master' into ui
started to render iqm - nothing visible now.
restructured GUI widgets' data representation from class type/instance-based
to function-based
advantage: single constructor for any widget type, no branching necessary
renamed modules after restructuring UI data
Merge branch 'master' into ui
first try at adaptive performance
added missing hsSDL2-stuff to dependencies.
Merge remote-tracking branch 'origin/ui'
tessellation-factor is now adaptive

- tessellation gets reduced in distance
- tess-factor is now adaptive
Merge branch 'iqm' into tessallation

Conflicts:
	src/Render/Render.hs
	src/Types.hs
better noise-function
noise entfernt