Using xr.open_dataset() with non-geographic projection results in ValueError

[tylere]

Xee appears to have problems opening datasets that use something other than the geographic projection (EPSG:4326).

All of the Xee examples seem to use EPSG:4326. (search results)

Script to reproduce the issue: https://colab.research.google.com/gist/tylere/afc4ef7b83650ec409eb5fa19e0e51c6/xee-issue-207.ipynb#scrollTo=9TIIvxiUlSDM

[jdbcode]

This might be a dup of #198, which should be fixed by #199.

[naschmitz]

There's a larger issue around mixing pyproj with EE projections. @tylere is looking into it.