new file:   Shower2.cxx
	new file:   Shower2.h
	modified:   THcCherenkov.cxx
	modified:   THcCherenkov.h
	modified:   THcShowerArray.h
	modified:   include/HallC_LinkDef.h

	modified:   ../src/CMakeLists.txt
	new file:   ../src/include/HallC_LinkDef.h

This repo along with hallac_evio and analyzer all have "cmake" branches
with complete cmake builds.