cmd, core, params: inital support for yolo-v1 testnet (#21154)

* core,params,puppeth: inital support for yolo-v1 testnet

* cmd/geth, core: add yolov1 console flag

* cmd, core, params: YoloV1 bakein fixups

Co-authored-by: Péter Szilágyi <peterke@gmail.com>

cmd/geth/usage.go

@@ -74,6 +74,7 @@ var AppHelpFlagGroups = []flagGroup{
 			utils.NetworkIdFlag,
 			utils.GoerliFlag,
 			utils.RinkebyFlag,
+			utils.YoloV1Flag,
 			utils.RopstenFlag,
 			utils.SyncModeFlag,
 			utils.ExitWhenSyncedFlag,