Split C files

[stroiman]

This is extracting the c files for Object, ObjectTemplate, and FunctionTemplate

You suggested including the first feature, but by only having a review on splitting the C-files, the feature review becomes much simpler, as it's just adding new functions - which I just noticed are not well documented, so I get the time to just add that :)

[stroiman]

I created another PR, targeting my own branch (this branch) with features. I though I could add you as a reviewer, but appears not to be immediately possible on my own fork.

But you can check this out at least, that's the next set of changes that you can view in isolation.
stroiman#2

[tommie]

Thanks!