GitLab

Modified the API for lots of classes so that the number of particles/bonds/etc. need not be specified in the constructor.

Modified/added CMake commands to allow input file name argument to be passed to TstBrookGBSAOBCForce
Renamed TestBrookGBSAOBCForce.cpp to TstBrookGBSAOBCForce.cpp as part of adding command-line arg
Modified TstBrookGBSAOBCForce.cpp to accept arg
brook/CMakeLists.txt modified to allow developer to set flag for static libs/exes