Provide the Paraver configuration files in a easily reachable centralized place

[alexbarcelo]

At the moment of writing this issue, there is a paraver folder in each demo in the dataclay-demos repository. The compss_and_dataclay.cfg can be found there, and is the configuration that a user should use on the paraver application in order to see the tracing.

We may want to have a single central place to have that configuration (e.g. just as COMPSs does: the folder files/paraver/cfgs in their repo) and let the user use those configuration. Also, those configuration files should be available in MareNostrum as sometimes users may want to use paraver from within the MareNostrum login nodes.