Adding unit conversions to Physics.h
I've updated the Physics.h to include a series of common unit conversions used throughout the code.
So far I've included:
- m <--> mm
- s <--> ns
- T <--> kG
- V <--> kV
- GeV/c^2 <--> kg
I've then used these conversions to replace the hard coded conversions in the following files:
I've linked this issue. There's a bit more discussion on this in the comments there.