Long-term we will need to replace all uses of "\n" in string literals printed to disk.
git-svn-id: https://svn.eduke32.com/eduke32@7394 1a8010ca-5511-0410-912e-c29ae57300e0
Currently it passes calls through to the system libraries as before.
Also adds an incomplete implementation on PhysFS.
git-svn-id: https://svn.eduke32.com/eduke32@7359 1a8010ca-5511-0410-912e-c29ae57300e0