for Drawing, Image, Inspection, Mesh, MeshPart, Part, Path, Points, Raytracing, ReverseEngineering, Spreadsheet, Start, Surface, Web
TODO: fix several -Woverflow in area
+ add SMESH_version.h.cmake to set full version number instead of using compiler define
+ do not set include path of smesh globally
+ do not set library path of smesh globally
+ do not set HAVE_NETGEN define globally
+ improve using debug and release libs of smesh for MSVC
+ some are doxy others are just comment code.
+ some minor whitespace and grammatical tweaks.
+ app/SCL/* typos have also been submitted upstream (https://github.com/stepcode/stepcode/pull/366). So it's ok to merge them in to master.