Update qt5 to 5.12.1 and add some missing modules

[TheScarfix]

still missing are androidextras, macextras, x11extras, webengine, webglplugin, webview, serialbus.
Also still fixing the Linux error, got to SQLite working. PSQL is still broken (but qt is not failing because of it now) and OpenGL libraries are needed on Linux (thinking about making it a dependency but I don't know how to check for installed packages)

[TheScarfix]

thinking about using features for the qt5 port instead of putting everything in as default. What do you think?

[Zingam]

thinking about using features for the qt5 port instead of putting everything in as default. What do you think?

Could you, please, explain?

[TheScarfix]

@Zingam sure :) I would split the qt5 port into features like quick, web, GUI, plugins so that when you install qt5 only the base is installed and not the whole framework. The other modules are installed via features or by specifying them like it is now. So the qt[quick] for example would include qt5-base, qt5-declarative, qt5-quickcontrols and qt5-quickcontrols2.

[Zingam]

Sounds great! What about Web related stuff?

[TheScarfix]

@Zingam some modules are still not working and I currently don't know how to get them to work if that's what you mean. So the web feature would be a thing for the future with webengine and other related modules.

[TheScarfix]

fixes #3859 #5038 #4804

[vicroms]

Excellent job @TheScarfix!

Looks like there are no regressions, so I'll merge this PR.
Here's the current status of Qt 5 on each platform.

package	arm-uwp	arm64-windows	x64-linux	x64-osx	x64-uwp	x64-windows	x64-windows-static	x86-windows
qt5	skip	skip	skip	skip	skip	pass	skip	pass
qt5-3d	skip	skip	skip	skip	skip	pass	skip	pass
qt5-activeqt	skip	skip	fail	skip	skip	pass	fail	pass
qt5-base	skip	skip	pass	skip	skip	pass	pass	pass
qt5-charts	skip	skip	fail	skip	skip	pass	pass	pass
qt5-connectivity	skip	skip	fail	skip	skip	pass	pass	pass
qt5-datavis3d	skip	skip	fail	skip	skip	pass	pass	pass
qt5-declarative	skip	skip	fail	skip	skip	pass	fail	pass
qt5-gamepad	skip	skip	fail	skip	skip	pass	pass	pass
qt5-graphicaleffects	skip	skip	skip	skip	skip	pass	skip	pass
qt5-imageformats	skip	skip	fail	skip	skip	pass	pass	pass
qt5-location	skip	skip	skip	skip	skip	pass	skip	pass
qt5-modularscripts	pass	pass	pass	pass	pass	pass	pass	pass
qt5-multimedia	skip	skip	skip	skip	skip	pass	skip	pass
qt5-networkauth	skip	skip	fail	skip	skip	pass	pass	pass
qt5-purchasing	skip	skip	fail	skip	skip	pass	fail	pass
qt5-quickcontrols	skip	skip	skip	skip	skip	pass	skip	pass
qt5-quickcontrols2	skip	skip	skip	skip	skip	pass	skip	pass
qt5-remoteobjects	skip	skip	fail	skip	skip	pass	fail	pass
qt5-script	skip	skip	fail	skip	skip	pass	pass	pass
qt5-scxml	skip	skip	skip	skip	skip	pass	skip	pass
qt5-sensors	skip	skip	fail	skip	skip	pass	pass	pass
qt5-serialport	skip	skip	fail	skip	skip	pass	pass	pass
qt5-speech	skip	skip	fail	skip	skip	pass	pass	pass
qt5-svg	skip	skip	fail	skip	skip	pass	pass	pass
qt5-tools	skip	skip	skip	skip	skip	pass	skip	pass
qt5-virtualkeyboard	skip	skip	fail	skip	skip	pass	pass	pass
qt5-webchannel	skip	skip	fail	skip	skip	pass	pass	pass
qt5-websockets	skip	skip	fail	skip	skip	pass	pass	pass
qt5-winextras	skip	skip	skip	skip	skip	pass	pass	pass
qt5-xmlpatterns	skip	skip	fail	skip	skip	pass	fail	pass

[heydojo]

Missing QtWebEngine. If you can successfully get Qt to 5.12.4 then I might consider sharing my port if there is any interest.