eqcompare: numeric InventoryType lookup, drop bagtypes/itemtypes locales

Both sub-tables carried per-locale strings only so pfUI's own code could
match against localized text. ClassicAPI's numeric item APIs replace
both:

- GetBagFamily now reads classID/subClassID from C_Item.GetItemInfoInstant
  and switches on the numbers (class 1 = Container, class 11 = Quiver).
- eqcompare pulls the itemID from GameTooltip:GetItem(), fetches the
  numeric invType via C_Item.GetItemInventoryTypeByID, and looks up the
  destination slot(s) in a numeric slotTable keyed by Enum.InventoryType.
  Pair-slot invtypes (finger / trinket / one-hand weapon) list both
  destinations directly, so the "_other" string-concat hack is gone.

Removes the setglobal INVTYPE_* injection, the tooltip text scan, and
the itemtypes + bagtypes locale sub-tables across all 7 files.

env/locales_enUS.lua

@@ -17,20 +17,6 @@ pfUI_locale["enUS"]["healduration"] = {
   ["Renew"] = "Increases the duration of your Renew spell by 3 sec.",
 }
 
-pfUI_locale["enUS"]["bagtypes"] = {
-  ["Quiver"] = "QUIVER",
-  ["Soul Bag"] = "SOULBAG",
-  ["Bag"] = "DEFAULT",
-}
-
-pfUI_locale["enUS"]["itemtypes"] = {
-  ["INVTYPE_WAND"] = "Wand",
-  ["INVTYPE_THROWN"] = "Thrown",
-  ["INVTYPE_GUN"] = "Gun",
-  ["INVTYPE_CROSSBOW"] = "Crossbow",
-  ["INVTYPE_PROJECTILE"] = "Projectile",
-}
-
 pfUI_locale["enUS"]["customcast"] = {
   ["AIMEDSHOT"] = "Aimed Shot",
   ["MULTISHOT"] = "Multi-Shot",