coa.10: CoA reputation factions (data-driven) + custom-class icons + all-professions Skills

- Reputation view rebuilt data-driven from each char's scanned factions grouped
  by in-game category; CoA custom factions (and future ones) appear automatically.
  Old hardcoded tree kept only as an icon lookup.
- CoA custom-class icons (classes 12-32) render from bundled atlas
  Altoholic/images/coa-classes.blp (texcoords from coa-details) instead of the
  Warrior glue-icon fallback in ShowClassIcons.
- Skills tab shows ALL known professions (dynamic list incl Woodcutting/Woodworking),
  not 2 fixed slots; DataStore_Skills scans on PLAYER_ENTERING_WORLD/SKILL_LINES_CHANGED
  (fixes 'no profession data' that only scanned on ghost-release).

DataStore_Reputations/DataStore_Reputations.lua

@@ -15,9 +15,10 @@ local THIS_ACCOUNT = "Default"
 local AddonDB_Defaults = {
 	global = {
 		Characters = {
-			['*'] = {				-- ["Account.Realm.Name"] 
+			['*'] = {				-- ["Account.Realm.Name"]
 				lastUpdate = nil,
-				Factions = {},
+				Factions = {},		-- [factionName] = "bottom|top|earned"
+				Headers = {},		-- [factionName] = headerName (in-game category, ex: "Wrath of the Lich King"). Lets the UI group dynamically incl. CoA custom factions.
 			}
 		}
 	}
@@ -59,13 +60,19 @@ local function _GetRawReputationInfo(character, faction)
 end
 
 local function _GetReputations(character)
-	return character.Factions
+	return character.Factions or {}
+end
+
+local function _GetReputationHeaders(character)
+	-- [factionName] = headerName (in-game category). May be empty for chars scanned before this field existed; UI must guard with "or {}".
+	return character.Headers or {}
 end
 
 local PublicMethods = {
 	GetReputationInfo = _GetReputationInfo,
 	GetRawReputationInfo = _GetRawReputationInfo,
 	GetReputations = _GetReputations,
+	GetReputationHeaders = _GetReputationHeaders,
 }
 
 function addon:OnInitialize()
@@ -75,6 +82,7 @@ function addon:OnInitialize()
 	DataStore:SetCharacterBasedMethod("GetReputationInfo")
 	DataStore:SetCharacterBasedMethod("GetRawReputationInfo")
 	DataStore:SetCharacterBasedMethod("GetReputations")
+	DataStore:SetCharacterBasedMethod("GetReputationHeaders")
 end
 
 function addon:OnEnable()
@@ -125,13 +133,24 @@ local function ScanReputations()
 	SaveHeaders()
 
 	local factions = addon.ThisCharacter.Factions
+	local headers = addon.ThisCharacter.Headers or {}
+	addon.ThisCharacter.Headers = headers
 	wipe(factions)
-	
+	wipe(headers)
+
+	local currentHeader = ""		-- track the in-game category so the UI can group factions dynamically (incl. CoA custom factions)
+
 	for i = 1, GetNumFactions() do		-- 2nd pass, data collection
 		local name, _, _, bottom, top, earned, _,	_, isHeader, _, hasRep = GetFactionInfo(i)
 		if (not isHeader) or (isHeader and hasRep) then
 			-- new in 3.0.2, headers may have rep, ex: alliance vanguard + horde expedition
 			factions[name] = bottom .. "|" .. top .. "|" .. earned
+			headers[name] = currentHeader
+		end
+		if isHeader then
+			-- any header (pure category like "Classic"/"Wrath of the Lich King", or a rep-bearing
+			-- header like "Alliance Vanguard") becomes the group for the factions listed beneath it
+			currentHeader = name or ""
 		end
 	end