[Hps] Location of HPS data files at JLAB and SLAC

[Homer]

Hi,

The location of data files available at JLAB and at SLAC are given at:

https://confluence.slac.stanford.edu/display/hpsg/HPS+Detector+data+available+at+JLAB+and+SLAC

More SLCIO files will be available soon.

Cheers,
     Homer