Support for all slidescore annotation types

[manyids2]

Is your feature request related to a problem? Please describe.
There are studies that have annotations outside of polygons, brushes and points that cause error on download.

Describe the solution you'd like
A test study that has all types of annotations, and a download script that successfully saves annotations from that study.

Describe alternatives you've considered
Patching to ignore unsupported types instead of raising error.

Additional context
Examples of needed support: Comments, Scores