make IDEs aware of the headers

[David Redondo]

Am Samstag, 7. Januar 2023, 16:40:27 CET schrieb Andrey Butirsky:


> > Other IDEs should benefit too.

KDevelop (and I think Kate too) displays headers in "Project" view without 
this. I am not convinced of this amount of work (and cluttering of our CMake 
files) to workaround IDE/editor deficiencies. While I don't know how easy it 
is to get at CMake is likely to have include info.

David