Producer to do PID with recoil tracker using dEdx

[tvami]

Is your feature request related to a problem? Please describe.

Trying to identify particles in the recoil tracker using dE/dx
We presented about this at the SWAN meeting at
https://indico.fnal.gov/event/64564/#21-studies-of-dedx-for-particl
and also
https://indico.fnal.gov/event/66246/#16-mass-estimation-with-dedx-i

Describe the solution you'd like

Add a produced to ldmx-sw that takes the calibration parameters (K&C) as a configuration variable, and runs ton the recoil tracks and returns a mass estimate (which then can be interpreted for a particle guess) for the given track.