Distorted Android

Introduce another Uniform Block Object. Now we can have much more vertex and fragment effects - up their default number to 100.

Plug two more memory leaks. It should be fine now.

Plug a major memory leak.
Still one more leak remains - a similar UniformBuffer has to be markedForDeletion in the EffectQueues.

Convert the Integer part (i.e. effect names and the two associations) of vertex and fragment shaders to Uniform Buffer Objects.
Next: convert the last part, i.e. the float effect parameters.

Cleanups

Fixes for the Rex Cube (mostly works now)

Bugfix: fix a long-standing bug where switching on normal vector drawing would interfere with transparency.

Bugfix: always normalize the normal vector after modifying it, otherwise the next effect might not work correctly (Distort!)

Bugfix: we initially need to set the maxTextureSize to MAX_INT, because otherwise early (i.e. before a call to onSurfaceCreated) calls to setTexture() will fail.

Put new things to the StackFrame.