* Allow mods to hide main Rearm/Repair items in Message Gauge
Adds a game_settings option to hide/disable the Rearm/Repair commands in the Squad Message Gauge. FotG does not use repair ships, so it is somewhat confusing to players to always see the `Rearm/Repair` order options (IE 5. Rearm/Repair Subsys and 6. Abort Rearm) and never be able to use them.
I wanted to make this PR as surgical as possible, while still giving some degree of generality, thus I went with the solution to use `active` as a true integer instead of simply an old int in the bool style. Now -1 is hidden, 0 is greyed out, and 1 is bright.
Tested and works as expected.
* update comment
* update with better name
* add another clarifying comment
* lua access to the comm board menu
* On Order Issued Lua Hook
* Some cleanup and safety checks
* Add mn.sendBuiltinMessage and perform more cleanup
* Send the correct ship to the hook for Sender
* clang cleanup
* address feedback
* fix build errors introduced from upstream
* basic hook conditions
* properly link the condition and the oswpt struct
* some requested cleanup
* allow for sending custom built-in messages
* address more feedback
* more prefix
Goober5000