QvxDataServer added, possibility to host and test own QVX Connectors

Signed-off-by: Konrad Mattheis <konrad.mattheis@akquinet.de>
small logging changes

Signed-off-by: Konrad Mattheis <konrad.mattheis@akquinet.de>
small changes

Signed-off-by: Konrad Mattheis <konrad.mattheis@akquinet.de>