Import Chronos timekeeping/scheduling library (vanilla 1.12)

Verbatim import of the Chronos addon from refaim's Vanilla WoW 1.12 addon
development libraries archive:
https://github.com/refaim/Vanilla-WoW-1.12-Addon-Development-Libraries-Archive (Libraries/Chronos)

Chronos is a hard dependency of CallOfElements (Chronos.scheduleByName/
startTimer/etc.). Hosting it as a standalone addon so the launcher can
install it alongside CoE.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

localization.fr.lua

@@ -0,0 +1,12 @@
+-- Version : French ( by Vjeux, Sasmira )
+-- Last Update : 03/21/2005
+
+if ( GetLocale() == "frFR" ) then
+
+	-- Chat Configuration
+	SCHEDULE_COMM		= {"/dans","/pause"};
+	SCHEDULE_DESC		= "/dans <secondes> <commande> [<args> ...]";
+	SCHEDULE_USAGE1		= "Utilisation : /dans <secondes> <commande> [<args> ...]";
+	SCHEDULE_USAGE2		= "Lance la <commande> avec les arguments <args> apr\195\168s <secondes> secondes.";
+
+end