Add test for DataURL format (#722)
Add test for DataURL format (#722)

* Add test for DataURL format


Co-authored-by: Cécile Vuilleumier <0f9a6bc22015dd2c391f0171fb4338724598c224@wrk146.wrk.lsn.camptocamp.com>
tomkralidis/OWSLib,geopython/OWSLib,kalxas/OWSLib