Rename geometry-filter "other" to geometrycollection and add more geom-filters

### Problem Description

The geometry filter "other" is not well defined (at least not in the docu of the ohsome-api). It remains unclear what it contains, apart from geometry-collections.

### Expected Solution

Be explicit on the filters. Add filters for Polygon vs MultiPolygon (vs Polygonal) etc.

### Alternative Solutions

Document what 'other'-geometry type is.

~### Additional Context~
~Add any other context or screenshots about the feature request here.~

Related: #436