qdbusxml2cpp's -i option uses "" for the includes.
However, an option to include with <> would be also
desirable, since some compilers may use a different
search strategy for <> than for "".
Add a new command line option -I/--global-include
to include the given argument using <>.
The new option will be used in qtconnectivity.
[ChangeLog][qdbusxml2cpp] Added command line option
-I/--global-include to include header files with <> in
the generated files.
Fixes: QTBUG-103362
Change-Id: If8e7f8b86440bdec53f2517db1ad460912664b20
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
cc70757964