Implement and use persistent ServerList

Initial idea was suggested back in #66, but recently made possible in clean and nice way, thanks to @azuisleet and @Netshroud

ArchiSteamFarm/Program.cs

@@ -462,7 +462,6 @@ namespace ArchiSteamFarm {
 			Logging.LogGenericInfo("ASF V" + Version);
 
 			Directory.SetCurrentDirectory(ExecutableDirectory);
-			InitServices();
 
 			// Allow loading configs from source tree if it's a debug build
 			if (Debugging.IsDebugBuild) {
@@ -481,6 +480,8 @@ namespace ArchiSteamFarm {
 				}
 			}
 
+			InitServices();
+
 			// If debugging is on, we prepare debug directory prior to running
 			if (GlobalConfig.Debug) {
 				if (Directory.Exists(DebugDirectory)) {
@@ -515,7 +516,7 @@ namespace ArchiSteamFarm {
 			CheckForUpdate().Wait();
 
 			// Before attempting to connect, initialize our list of CMs
-			Bot.RefreshCMs(GlobalDatabase.CellID).Wait();
+			Bot.InitializeCMs(GlobalDatabase.CellID, GlobalDatabase.ServerListProvider);
 
 			bool isRunning = false;