Revert "Avoid cast on feature table to get geometry type"

This reverts commit 4636d82bed0cb8ac26d694984c5d1e3380d49a91.
Renamed GeodatabaseFeatureTable to ArcGISFeatureTable
Merge branch 'v.next' of https://github.com/Esri/arcgis-toolkit-dotnet into v.next
Merge branch 'v.next' into dom/api_credential_refactoring