Remove dependency on CMSSW and switch to CMake
Switch to an LCG computing environment and eliminate references to CMSSW. Change directory structure for C++ code. Switch to CMake. The main executable is now discoverable in $PATH
, and it is possible to run it from outside of the root directory of the repository.
Fixes shears#41 (closed) and shears#18 (closed). Relates to shears#42 (closed).