Example csw workspace is not self-containing

[tfr42]

The example workspace shall contain test data so that is could be started without errors.

Ressource causing the error: https://github.com/deegree/deegree3/blob/deegree-3.4.31/deegree-workspaces/deegree-workspace-csw/src/main/resources/jdbc/conn1.xml

Existing example with data: https://github.com/deegree/deegree3/tree/master/deegree-workspaces/deegree-workspace-csw-memory-tests/src/main/resources/metadata

[julianzz98]

I would suggest to delete the current "deegree-workspace-csw" and substitute it with the "deegree-workspace-csw-memory-test" as it contains the necessary data in itself. Furthermore less space would be occupied.