Adding supported document mimetypes to the obj datastream in the ds_composite_model to fix zip importer issues.
Adding supported document mimetypes to the obj datastream in the ds_composite_model to fix zip importer issues.

discoverygarden/islandora_solution_pack_document,discoverygarden/islandora_solution_pack_document,qadan/islandora_solution_pack_document,qadan/islandora_solution_pack_document