Added PlayerProvided#scheduleOfflineRemoval

This is a default method to schedule offline player removal, just in case a custom PlayerProvide wants to schedule this differently

shared/src/main/java/net/codersky/skyutils/crossplatform/player/PlayerProvider.java

@@ -95,6 +95,10 @@ protected void handleQuit(@NotNull ON_HANDLE handle) {
 		if (online == null)
 			return;
 		offlineCache.put(uuid, toOffline(online));
+		scheduleOfflineRemoval(uuid);
+	}
+
+	protected void scheduleOfflineRemoval(@NotNull UUID uuid) {
 		scheduler.delaySync(() -> offlineCache.remove(uuid), TimeUnit.MINUTES, 20);
 	}
 }