add config to show fields in google where to position osd elements

[druckgott]

Add posibility of showing availible areas of position with points (char 0x09) Config: fakehd_fields

[benlumley]

Hey

Not sure how this is different to the existing fakehd_layout_debug config option ?

[druckgott]

I have seen this afterwards. My idea was that a user can switch it on while config the osd and have overview where the fields are and I select the point because then you can see the numbers and icons quite good. I see the debug option afterwards and see it's similar, but on the debug option the overview is quide hard because of the different numbers.

Maybe it makes sense to combine both and if debug is on its the number and if only highlight area is on its only a point for users to easyer config the osd elements in betaflight and se where the grid is splitted?