Facade exports

[pierotofy]

It would be cool to allow people to select a few points from point cloud view / textured model view and export a rendering of a facade.

This would require making a port of https://github.com/OpenDroneMap/odm_orthophoto to Python + adding the necessary code to align/rotate the model according to the selected points.

Or add the code to odm_orthophoto, but then we'd need to build with OpenCV and PCL. Would be neater to get this done in pure Python / rasterio.