Interface with ml formats

[rom1504]

Make it easy to generate ml common 3D formats from schematics (related with #4 )

[rom1504]

Things that would be interesting (but maybe this should happen in a pworld exporter and not here):

• Export as 3d numpy matrix of 0/1
• same but with state id
• Same but with colors
• Obj/stl/gltf files (doable with pviewer)
• point cloud ?

(This should probably be done in another package)

[rom1504]

https://numpy.org/doc/stable/reference/generated/numpy.lib.format.html

[rom1504]

there is https://github.com/ludwigschubert/js-numpy-parser but somehow there is no npm package to write numpy files ?!

[rom1504]

ah maybe https://github.com/propelml/tfjs-npy

[rom1504]

https://github.com/propelml/tfjs-npy/blob/master/npy.ts#L20