Send request broadcast userinfo

[Littleaton]

Summary Added new actions/arguments to send nodedb.

This should be exactly what the android app does when using exchanging user info option on node details

Motivation I wanted a way to help troubleshoot new nodes on seeing my node in the mesh, as well as a way to quickly populate / add my node to new nodes nodedb.

Example Usage Send to everyone: meshtastic --broadcast-userinfo Send to someone and expect reply back: meshtastic --request-userinfo --dest Send to someone without reply: meshtastic --send-userinfo --dest

Impact I am not aware of any issues that adding this would cause but may need further testing on other devices.