dagmc cmakified from the top

This adds CMakeLists.txt files from the top down to Geant4/dagsolid/src and adds
the library versioning and dependencies so that share libs build correctly on OS X.
Build on Linux also checked.  Cannot build Windows until moab and cgm are properly
cmakified.

This pulls in the scimake repo at the top; said repo helped to cmakify dagmc.

It can also be built with all dependencies as the Bilder project, dagmcall, which is
obtained and built by doing.

https://svn.code.sf.net/p/bilder/code/dagmcall/trunk dagmcall
cd dagmcall
./mkdagmcall-default.sh