Changes some of the GUI stuff around for ItemEditing.

SimplexNoise now generates proper splat maps (r+g+b+a = 1)

Adds outlined as a GUIMessage style property
Moves Renames GUIMessageSettings to DefaultGUIMessageSettings

'FakeParent' now doesn't cause errors if it has no target.

Adds float.Normalize(float a, float b). Does the same thing as
float.Position(float a, float b)