Autogen interfaces

Hello all!


We (@squareys, @dietzc) auto-generated the arithmetic ops interfaces and real-type arithmetic ops implementations from ImgLib2 (net.imglib2.operation.real.unary) for ImageJ-Ops. 

I left in the .list and .template which were used for auto-generation for the RealType Implementations, just in case you want to keep them.

Warning:
A lot of auto generation was involved (also using the groovy script). It looks fine, but one never knows ;)

Note:
When this gets merged, you may want to add license headers.

What else could we now auto-generate? Any concrete plans for this? If not, we would go on converting existing ops manually to imagej-ops (e.g. regiongrowing etc).

Greetings, 
Jonathan Hale (Squareys)