Use qrt signal to identify quartets, find pattern if it doesn't.
  Fail over to HMS helicity signals if SHMS not found
  Add pcheck and cycle global vars (for fine tuning frequency)
  Start a helicity scaler class.  Just compares seeds for now.

THcTrigDet::Decode change the ADC/TDC window limits to be ">="
instead of ">".

THcTrigDet::ReadDatabase change default upper ADC/TDC window
limit to 100000 so that the DC are not cut by default setting.

	modified:   .gitlab-ci.yml

	modified:   ../.gitignore
	modified:   ../containers/singularity/Singularity
	modified:   Scandalizer.cxx
	modified:   THcParmList.cxx
	new file:   ../tests/README.md

	modified:   .gitlab-ci.yml

	new file:   tests/elastic_test.cxx
modified : tests / elastic_test.sh

	modified:   .gitlabci/setup.sh