Upgarde Tracker pahse1&2 Development configuration

Configuring dev scenarios for tracker phase1 and phase2 : 
xmls/ config are for the moment clone in dev folders and dev extensions to allow further developments without disturbing anybody (in particular TP MC production)  - To test these 2 new scenarios I used  runTheMatrix.py --what upgrade -l 10600,10800  (or in general 106xx for phase1 and 108xxx for phase2 - those are replacing the old Be5Dfast and 2017fast never used) 
None of the usual numbering in runthematrix is touched (which means that this should be transparent for any shashlik  , hgcal etc .. scenarios )  - I took also this opportunity to remove LongBarrel old config files (deprecated for 1.5 years) 

@boudoul
This line should be in addition instead of replacing, otherwise the non-dev cust_2017 and cust_2019 don't work.  I have it fixed in a branch which I'm currently testing and will merge soon - no need for you to do anything.  Sorry for the delay.