Dev 0.11 (#181)

* Sonar qube 6 (#174)

* test class ModbusConn

* Sonar qube 3 (#178)

* add more unit tests

* GEN3: don't crash on overwritten msg in the receive buffer

* improve test coverage und reduce test delays

* reduce cognitive complexity

app/src/gen3plus/connection_g3p.py

@@ -31,10 +31,10 @@ class ConnectionG3P(AsyncStream, SolarmanV5):
         #  logger.info(f'AsyncStream refs: {gc.get_referrers(self)}')
 
     async def async_create_remote(self) -> None:
-        pass  # virtual interface
+        pass  # virtual interface # pragma: no cover
 
     async def async_publ_mqtt(self) -> None:
-        pass  # virtual interface
+        pass  # virtual interface # pragma: no cover
 
     def healthy(self) -> bool:
         logger.debug('ConnectionG3P healthy()')