Open62541 is a new backend added to the Qt OpcUA module. Furthermore,
this is going to be used as new test server to verify changes against.
Change-Id: Id08c91644f33734318925d84fb22b0d011604dd9
Reviewed-by: Frank Meerkoetter <frank.meerkoetter@basyskom.com>
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>
