moved documents_path setting to config_local.yml files to allow site-specific configuration; Moongate documents_path now defined in config_local.yml (same way DPW docs_path is defined); new test file for household based on moongate.t, most dpw.t tests now skipped as they are not htmx-aware

moved process_request() & get_next_location() methods into own module for use in other .t files