Observable notebook to render arbitrary triangle mesh (without image source)

It should take inputs:

**geotransform**

Either the `geotransform` or its constituent parts:

- originX
- originY
- pixelSize X
- pixelSize Y

**image height and width**

**source CRS**

Either EPSG code (which we then fetch from epsg.io) or literal WKT text/PROJJSON object

**Max reprojection pixel error**

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Then render a set of triangles for the given inputs.