Synchronize configuration for an Azure IoT Edge module using its module twin instead of the parent device twin

Steps

1. Confirm the IoT Hub is Standard tier, since module twins are not available on the Basic tier
2. Register the module identity under the device (up to 50 modules per device) so a module twin is created automatically
3. Have the module connect using its module-scoped client ID ({device-id}/{module-id}) and subscribe to $iothub/twin/PATCH/properties/desired/?$version=
4. Report module state by publishing to $iothub/twin/PATCH/properties/reported/?$rid=
5. Set desired properties on the module twin (not the device twin) from the backend via the Registry Manager module twin APIs or a REST path including /modules/{moduleName}