[BRLTTY] Dimensions of braille displays

[Sébastien Hinderer]

> That is not quite right.  I remember a 2x40 display by a company called
> EHG, if I remember correctly.  Or the product was called EHG, at least
> it was sold in the 90s in europe.  And there is the HandyTech GWP (graphic
> window professional) which has a matrix of dots for displaying
> graphics.

Hmm, it seems we'll have to improve BrlAPI to make these graphical
devices accessible, too.
But this probably also requires a few modifications in brltty itself.

Cheers,
Sébastien.