gen_mesh.py: add show_mesh_info.py as subcommand in main()
gen_mesh.py: add show_mesh_info.py as subcommand in main()

rc/sfepy,vlukes/sfepy,BubuLK/sfepy,sfepy/sfepy,BubuLK/sfepy,vlukes/sfepy,vlukes/sfepy,sfepy/sfepy,sfepy/sfepy,rc/sfepy,BubuLK/sfepy,rc/sfepy