Update with SAMs

In principle this release still holds the capability to run the ERR configurations in parallel to other configurations (look at prex2.gdml and crex5.gdml). This will be checked before the next major release.

Since last release the beam pipe configuration has been updated to include Small Angle Monitors (SAMs) and updated to include better dump configurations (in particular for PREX1). Additionally we have working configurations for HAPPEX2 and MOLLER. Both of these were used to estimate dose from the dump and SAMs. The geometry folder has ballooned to include many different configuration that were tested. Moreover, the o ring and flange between the hall and dump beam lines were included to evaluate dose.

Configurations in this release are going to be tested against all ERR results for consistency (in particular wrt to hall lid -- indications already exist that we have a significant departure https://ace.phys.virginia.edu:80/HAPPEX/3466 ).

A series of vacuum detectors were added to this configuration both in the beamline and around the hall.