Update gstate.lua

* Change explanation of Event.systemname to accept both
  number and string contents
Update init.lua

* Add trek.damage in submodule setup
* Change submodule loading sequence in the alphabetic collation sequence
Update initquad.lua

* Enable trek.damage.damaged() subcode
  (Still need to write up shield())
Update damage.lua

* Add trek.damage.damaged() as in BSDtrek damaged.c
Update srscan.lua

* Enable trek.damage.damaged()
* Fix logic to print LIFESUP status