DataInterpreter: Add option to disable unwanted interpretations

[schrmh]

Personally I almost always only need an interpretation for 32 bit floating-point numbers in little endian and color interpretation (those would first need #213 and #214 however). All other fields I wouldn't need.

[EUA]

This might be o.k. I remember that I design an interface to do that but... deleted by accident. Never make it again since I found that not useful. Lets leave this open to see how many people like such a configurable data interpreter dialog...