be3780d split out doc package and add qch files

Authored and Committed by loise 2 months ago
    split out doc package and add qch files
    
    due to different Cmake options, this got unnoticed.

    

    I split out the doc package like for all kf6 based -doc rpms and only generate the file of interest for local installation and tested it in Qt Creator after installing.
        
file modified
+21 -9