service creation and deletion with webui added to jinja mode

src/device/service/drivers/openconfig/OpenConfigDriver.py

src/device/service/drivers/openconfig/templates/__init__.py

...enconfig/templates/interface/subinterface/edit_config.xml

...ers/openconfig/templates/network_instance/edit_config.xml

...nfig/templates/network_instance/interface/edit_config.xml

...nfig/templates/network_instance/protocols/edit_config.xml

...plates/network_instance/table_connections/edit_config.xml

...outing_policy/policy_definition/statement/edit_config.xml

...e/service/service_handlers/l3nm_openconfig/ConfigRules.py