[Ovmsdev] esp-idf update

I've pushed the merge with the latest esp-idf master to our repository. I've been running this build for about a day without issues. It contains some new configurations, all defaults can be accepted. Don't forget to do a "git submodule update" after pulling. Regards, Michael -- Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal Fon 02333 / 833 5735 * Handy 0176 / 206 989 26