new dependency under CentOS 8

[burghart]

I'm building lrose-core on a CentOS 8 machine, and got a lot of errors like:

Package Qt5Qml was not found in the pkg-config search path.
Perhaps you should add the directory containing `Qt5Qml.pc'
to the PKG_CONFIG_PATH environment variable
Package 'Qt5Qml', required by 'virtual:world', not found

This problem is resolved by installing the at5-qtdeclarative-devel package:

$ sudo dnf install qt5-qtdeclarative-devel

[burghart]

Oops, I now see qt5-qtdeclarative-devel is already in the list of needed packages...