Feature request: Store pilot name on ESP32

[MrD-RC]

Now that parameters are being set by Bluetooth. Could the pilot name now be set on the ESP32, rather than using the craft name from MSP?

The main advantages are:

1. Craft name on the FC can remain the name of the craft, not the pilot. This is useful file creation and having the model's name on the OSD.
2. You can set a specific pilot name for Radar, which takes into account the character limitations, without limiting the craft name.
3. Analogue pilots flying with DJI pilots would see something meaningful.
4. Moving the module between models does not rely on the FC's craft name, it is consistent.