Allow users to enter pairing mode with new block in control section

[jaustin]

Is your feature request related to a problem? Please describe.

The difficulty of entering pairing mode is tricky for some students eg
https://twitter.com/jerseyitguy/status/1622205053640622080

Furthermore, if building your micro:bit into a device and mounting it somewhere, it becomes hard to trigger pairing mode to update the code.

Describe the solution you'd like

Codal will soon have an event to allow entering pairing mode that's available in both radio and bluetooth mode:

See:
lancaster-university/microbit-dal#392
lancaster-university/codal-microbit-v2#263

Once this is implemented in CODAL, we'd like to expose a new block in 'control' in MakeCode that generates this event. It could either be a new block, or extend the 'reset' block

CC: @JohnVidler @whaleygeek

[whaleygeek]

Excellent idea thanks!

The user above has a new solution (soldered wires onto all 3 buttons, see the tweet thread) but this will also be great for fixed installations as you say. Thanks for picking up on this. Accessibility and inclusivity has always been forefront in the work done by BBC, it is great to see the foundation following this lead.

[abchatra]

This is dependent on CODAL at this point of time

[jaustin]

@JohnVidler what's the status of this please?