Add tiler

[alanocallaghan]

JTS tiler implementation, mostly uses the same logic as tiler plugin, but adds symmetric flag, which I think is preferable

[petebankhead]

(Also can't merge code if it's derived from something GPL and we want to use Apache here, even if it's something GPL that I wrote [at least if I don't own the copyright]...)

[alanocallaghan]

That makes sense, I would have used only Geometry here but I found the creation method for rectangles a bit OTT and had evidently not noticed the geometrytools method

I'll write a new class using just the new code from the static creation method

[alanocallaghan]

Sounds sensible, I inferred from the methods that createGeometries would replace tile, but do correct me if I jumped the gun there

[petebankhead]

Sounds sensible, I inferred from the methods that createGeometries would replace tile, but do correct me if I jumped the gun there

Yeah, I'd have stuck with tile except that introducing the option to create tile objects made that confusing

[alanocallaghan]

I ditched the static method, can add it if it's useful if we port to QuPath, otherwise I think this is good to go