Added version info output to files

source/voronoi/.gitignore

source/voronoi/prog/clsgen_tb.f

source/voronoi/prog/clsgen_voronoi.f

source/voronoi/prog/genpotstart12.f

source/voronoi/prog/getversion.sh

source/voronoi/prog/jellstart12.f

source/voronoi/prog/last_version_number

source/voronoi/prog/maindriver12.f

source/voronoi/prog/makefile

source/voronoi/prog/readinput12.f90

source/voronoi/prog/ritesone.f

source/voronoi/prog/version_info.F90

source/voronoi/prog/writeshape.f