[BRLTTY] brltty for Android and quick navigation keys support

[Mgr. Janusz Chmiel]

Because Google Talkback screen reader simply refuse to allow users to 
press simply h for heading, k for link ETC when some compatible WEB page 
have been loaded, users must always hold some other modification key 
with simply navigation keys, I Am wondering.
How complex would be to extend Brltty for Android so all elements, which 
Talkback support in combination with modifier keys could be directly 
used from Braille device by using build in keyboard on Braille display.
The only question is, if Talkback export some public APIS so Brltty for 
Android could use them for quickly jump to heading after user press h on 
his Braille device, ETC.
Brltty for Android would had to auto detect which WEB engine have been 
used, if WEBview, or Gecko.
What do you think?
Or it would be much more easier to directly modify Talkback and compile 
it for testing package, so I would have two Talkbacks on my system. One 
officially signed as system app and second with modification, which 
would allow users to directly type quick navigation keys on external 
keyboard for WEB page navigation with no need to hold modifier key?