GUI for CxxProf_server

[monsdar]

We should create a simple GUI for the server. There could be a lot of useful functions which aren't as easy to integrate with a simple console application:

• Define where the DB is stored to
• Start/Stop server (so that a user could create multiple DBs from the same application. Perhaps recording different states etc)
• Statistics about the received/stored data
• ...

We should create single issues out of that above list if the GUI is basically implemented.

[monsdar]

This could also be a GoodFirstIssue, but it'll take more work to get it done correctly. Also a lot of communication would be needed to get the UseCases and Features together which should be integrated in the GUI.