Added data file to repo

I know this is bad form but will make things easier swaping between
work and home. Also added line to CmakeLists to copy data file into
the build directory so it can easily be run on.
Start operation to read in Muons

Curently only counts the muons in the file
Add missing square root
Add read in for muon momentum
Sort muon invarient mass and print out top 10 combinations