Update get_mapping_definitions for Audit scope
Update get_mapping_definitions for Audit scope

Audit-scope objects should be mappable to Snapshottable objects via
Snapshots and directly to non-Snapshottable (e.g., Audit scope) objects.

plamut/ggrc-core,AleksNeStu/ggrc-core,plamut/ggrc-core,plamut/ggrc-core,AleksNeStu/ggrc-core,AleksNeStu/ggrc-core,AleksNeStu/ggrc-core,plamut/ggrc-core