FR: Use default node name for debug when name not specified

[smanjunath211]

I had raised a feature request some time ago to Auto serialise (if that's a word) the debug nodes as soon as they are dragged on the editor tabs, so that if we need to , we can name them, else still by default they will have unique names. the same can be applied to other nodes as well i suppose. ?

Auto-Name Debug Node with some serialization, with an option to override the name

When a debug node is drawn to the editor panel, it should automatically give a unique name to the Debug node like Debug 1, Debug 2, Debug 3, etc. instead of msg.payload for every debug node. (Similar to excel creating different worksheets with sheet1, sheet2 etc). if the user wants, he will rename the debug node to whatever he likes.