Draft: Support for two output directories

This PR introduces the ability to use two output directories. The first directory functions as before, while the second directory will contain only root files.

The second output directory is optional.

This update should now allow for submitting Condor jobs from the LXPlus AFS area and storing the output in a personal EOS area.

From personal AFS area, I was able to submit this job:

bambooRun -m bamboo/examples/nanozmumu.py:NanoZMuMu bamboo/examples/test1.yml -o results1 -oR /eos/home-j/jlidrych/bambooDEV --distributed driver

The root files were stored in /eos/home-j/jlidrych/bambooDEV, while the plots and condor log files are in results1.

I would propose a bit more testing before it is merged to the master branch. -> marked as a draft