adding basis for raytime3d (not yet functional)

raytime3d/Makefile

raytime3d/SUsegy.h

raytime3d/atopkge.c

raytime3d/docpkge.c

raytime3d/getModelInfo.c

raytime3d/getParameters.c

raytime3d/getWaveletHeaders.c

raytime3d/getWaveletInfo.c

raytime3d/getpars.c

raytime3d/name_ext.c

raytime3d/par.h

raytime3d/raytime.h

raytime3d/raytime3d.c

raytime3d/readModel.c

raytime3d/recvPar.c

raytime3d/segy.h

raytime3d/src3d.c

raytime3d/threadAffinity.c

raytime3d/verbosepkg.c

raytime3d/vidale3d.c