Global_Function updates.
* Added the following functions:
  - "F_GetPlural" (returns plural of noun) / "F_InsertPlural" (returns plural if arg != 1)  [credits: EnglishClub for formation rules]
  - "F_InsertArticle" (returns 'a' or 'an' preceding word)
  - "F_InsertComma" (formats number with commas)
  - "F_GetNumSuffix" (formats number with '-st', '-nd', '-rd', or '-th' suffix)
* Added and removed new functions where necessary. (incomplete)
* Added new types to "F_GetArmorType" function, and weapons will now pass to "F_GetWeaponType".
* Reformatted comments.

Other changes:
* Removed some garbage text from scripts.
* Slight edits to custom warper script.

Signed-off-by: Euphy <euphy.raliel@rathena.org>