Changes to Capture Boundingbox 2D

the query request parameter camera_prim_path became optional

added the new enum value jpeg to the query request parameter result_type

query request parameter camera_prim_path list-of-types was widened by adding types null

for the query request parameter camera_prim_path, the type was generalized from string to no type

added the media type image/jpeg for the response with the status 200