add C wrapper around options manager
add C wrapper around options manager

trshaffer/cvmfs,trshaffer/cvmfs,cvmfs/cvmfs,DrDaveD/cvmfs,cvmfs/cvmfs,trshaffer/cvmfs,Gangbiao/cvmfs,djw8605/cvmfs,DrDaveD/cvmfs,DrDaveD/cvmfs,Gangbiao/cvmfs,DrDaveD/cvmfs,trshaffer/cvmfs,djw8605/cvmfs,DrDaveD/cvmfs,DrDaveD/cvmfs,Gangbiao/cvmfs,Gangbiao/cvmfs,djw8605/cvmfs,cvmfs/cvmfs,djw8605/cvmfs,cvmfs/cvmfs,cvmfs/cvmfs,trshaffer/cvmfs,Gangbiao/cvmfs,DrDaveD/cvmfs,cvmfs/cvmfs,djw8605/cvmfs,cvmfs/cvmfs