Readcounts + connectionpool

Readcounts : an EPP that will be used to sum up reads

connectionpool : since tools has 24 potential threads, I can't work with the default connectionpool size (10) if I want to run a lot of threads.
**IF** the process id i.e 666 for `Bcl Conversion & Demultiplexing` is standard and fix _I would personally_ put it in `genologics/__init__.py`