fix(libs): restore ElvUI-namespaced Ace3 stack clobbered by sweep

The coa-ace3 sweep (commits 0c130e0..5ea6e44, before coa-elvui was added to
EXCLUDED_FORKS in coa-ace3 tools/sweep.py) overwrote ElvUI's customized,
-ElvUI-namespaced Ace3 libs with plain canonical ones. ElvUI registers libs
as AceLocale-3.0-ElvUI and the AceConfig-3.0-ElvUI family (plus -ElvUI
widgets that don't exist in canonical), so the clobber left them
unregistered: ElvUI failed to init (16 locale 'L' errors) and /ec would not
open. Restores ElvUI/Libraries/Ace3/AceLocale-3.0 and the
ElvUI_OptionsUI/Libraries/Ace3 stack to their pre-sweep state (5021fd1).
coa-elvui is now in EXCLUDED_FORKS, so this won't be re-clobbered.

ElvUI_OptionsUI/Libraries/Ace3/AceConfig-3.0/AceConfig-3.0.lua

@@ -12,10 +12,10 @@ Very light wrapper library that combines all the AceConfig subcomponents into on
 
 ]]
 
-local cfgreg = LibStub("AceConfigRegistry-3.0")
-local cfgcmd = LibStub("AceConfigCmd-3.0")
+local cfgreg = LibStub("AceConfigRegistry-3.0-ElvUI")
+local cfgcmd = LibStub("AceConfigCmd-3.0-ElvUI")
 
-local MAJOR, MINOR = "AceConfig-3.0", 3
+local MAJOR, MINOR = "AceConfig-3.0-ElvUI", 3
 local AceConfig = LibStub:NewLibrary(MAJOR, MINOR)
 
 if not AceConfig then return end
@@ -27,7 +27,7 @@ if not AceConfig then return end
 local pcall, error, type, pairs = pcall, error, type, pairs
 
 -- -------------------------------------------------------------------
--- :RegisterOptionsTable(appName, options, slashcmd)
+-- :RegisterOptionsTable(appName, options, slashcmd, persist)
 --
 -- - appName - (string) application name
 -- - options - table or function ref, see AceConfigRegistry