add create_datastore request parameter class.
add create_datastore requestor.
implements create_datastore request parameter rule.
check createShareable parameter, and shareable datastore's dsid rule implements.
check shareable datastore creation.
add role field to GetOrCreateDatastoreResult optional.
add role field for GetOrCreateDatastore class.
implements isShareable method for checking datastore is private or public.
remove todo comment.
implements fake assigned role method and refactoring test.
change assignedRole and isShareable method to RichDatastore class.
add role to ds_info model.
add toJsonValue method for WrappedInt
add toJsonValue method for WrappedTimestamp
add toJsonValue method for WrappedBytes
refactoring WrappedAtoms.
implements check and set role api for shareable datastore.
refactoring test.
refactoring and add method comment.
change assign method for update role.