Autogeneration of Interfaces

Hello all!

I have finally finished migrating the RealUnary ops from ImgLib2 (net.imglib2.ops.operation.real.unary).
In the process I did some work on auto generation, which is now able to parse lists and maps from .list files.

Syntax for lists and maps are the same as in velocity, which you can find at https://velocity.apache.org/engine/devel/user-guide.html#set with the exception of quotation marks generally not being required, but optional to escape ',', '{', etc. Also, ' may be used instead of ".

The ops have undergone the process of being parsed, their interfaces extracted and then written to entries in .list files (one for interface and one for implementation). This means, that I might have missed an edge case when writing the parser, though.

Greetings, 
Jonathan (Squareys)