Add file tracking TODOs

By no means complete or even up to date, neither now nor in foreseeable future.
Pseudo-localized en_US messages

Generated with `podebug --rewrite unicode`.
Byte-compiled pseudo-translation for en_US

Obviously this is just for testing purposes and should be removed from
history if these commits end up anywhere.
Gettextify show_prompt
Gettextify ability_name where necessary
Translate ability menu
Message splitting
Translate some targeting prompts
Translate godpassive
Translate some religion-related strings in describe.cc (^ screen)
Translate _decrement_a_duration strings
Translate ARTP_ descriptions of randarts
"Translate" weapon and armour statlines, translate missile descs
Translate item corrosion resistance desc parts
Translate armour desc: SPARM_ and racial tags
Translate jewelry desc
"Translate" deck desc lines (Proper ngettext anyone? Spoiler alert!)
Draconian legwork
Threat legwork
STRING INIT (XXX)