Improve handling of external smesh

+ 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

src/Mod/Fem/App/AppFem.cpp

@@ -30,6 +30,7 @@
 #include <Base/Interpreter.h>
 #include <CXX/Extensions.hxx>
 
+#include <SMESH_Version.h>
 #include "FemMeshPy.h"
 #include "FemMesh.h"
 #include "FemMeshProperty.h"