Allow users to supply compiled lua bytecode instead of script.

[eacmen]

The buffer size for the lua script on the RCP is limited. It would be nice if once a script was developed and proven to work that a user could use luac to strip the debug information and be able to fit more lua code on the RCP.

For example my script is much smaller with debugging info stripped:

0 peter@ld64 /workspace/m3/hpde/rcp-lua$ luac -o gopro_session_multicam.lua.out gopro_session_multicam.lua
0 peter@ld64 /workspace/m3/hpde/rcp-lua$ luac -s -o gopro_session_multicam.lua.out.stripped gopro_session_multicam.lua
0 peter@ld64 /workspace/m3/hpde/rcp-lua$ ls -al *out*
-rw-r--r-- 1 peter peter 9873 Oct 11 11:53 gopro_session_multicam.lua.out
-rw-r--r-- 1 peter peter 4997 Oct 11 11:53 gopro_session_multicam.lua.out.stripped