TFile & smart pointers engage

Hi @goblirsc,

while debugging my code to find out why the jobs take a tremendous amount of time to start, I noticed that the TFile access is still handled via raw pointers rather than the shared_ptr. In the end, I had to blame the terrible slow disk of MPPMU, but I thought it's fine to have these changes in, as they avoid memory leaking.

Cheers,

Johannes