BNO-capable branch: Show detected BNO in headstage component

[aacuevas]

This is only for the in-development branch with support for the v3 acquisition board with BNO support.
On this branch, the headstage auto-scan also detects for connected BNO-capable headstages. It would be interesting and user-friendly if on the component that shows which headstages are connected on each port, the B side of ports containing a BNO-capable headstage showed this, with maybe a B or any other character. This is also conceptually correct as BNO headstages use the MISO2 lines, same as a second headstage with dual adapter.

[jonnew]

This sounds good -- I think the text should be "IMU" or something as "B" is kinda similar to the port name.