Added lua to the repo

Makefile

lua-5.2.1/Makefile

lua-5.2.1/README

lua-5.2.1/doc/contents.html

lua-5.2.1/doc/logo.gif

lua-5.2.1/doc/lua.1

lua-5.2.1/doc/lua.css

lua-5.2.1/doc/luac.1

lua-5.2.1/doc/manual.css

lua-5.2.1/doc/manual.html

lua-5.2.1/doc/osi-certified-72x60.png

lua-5.2.1/doc/readme.html

lua-5.2.1/src/Makefile

lua-5.2.1/src/lapi.c

lua-5.2.1/src/lapi.h

lua-5.2.1/src/lauxlib.c

lua-5.2.1/src/lauxlib.h

lua-5.2.1/src/lbaselib.c

lua-5.2.1/src/lbitlib.c

lua-5.2.1/src/lcode.c