qt5: Add qtnetworkauth submodule

[ilpianista]

Motivation for this change

Add QtNetworkAuth module available since Qt 5.8.

Things done

• Tested using sandboxing
  (nix.useSandbox on NixOS,
  or option build-use-sandbox in nix.conf
  on non-NixOS)
• Built on platform(s)
  • NixOS
  • macOS
  • Linux
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nox --run "nox-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Fits CONTRIBUTING.md.

---

[ttuegel]

@ilpianista As is, the build does not produce any QML outputs. If that is correct, please remove the bin output and the postInstall hook below. If the build should produce QML outputs, add qtdeclarative to the qtInputs.

[ilpianista]

@ttuegel It doesn't produce any QML output. Fixed, thanks!

[grahamc]

$ nix-env --file . -qa
error: anonymous function at pkgs/development/libraries/qt-5/5.9/qtnetworkauth.nix:1:1 called without required argument ‘qtSubmodule’, at lib/customisation.nix:74:12

[grahamc]

@ttuegel it seems merging this has broken the eval

[vcunat]

Reverted now.

[ilpianista]

Indeed, fe0ab94 refactored all qt5 packages and then this is broken now. Unfortunately I'm not using NixOS anymore at the moment, so I'll not update this PR.

Thanks anyway!

[ttuegel]

Indeed, fe0ab94 refactored all qt5 packages and then this is broken now.

Sorry, I foolishly assumed that Git would report a merge conflict if there was a problem with the refactoring. Somehow I always seem to find trivial conflicts need to be manually resolved, while Git "automatically" resolves non-trivial conflicts badly.