Add support for a wayland variant of Qt for Linux

[spham-amzn]

• Remove unnecessary wrapper scripts build-linux-aarch64.sh and build-linux-x86.sh
• Add special build_config_wayland.json and Dockerfile.wayland to support the wayland variant
• Update docker_build_qt_linux.sh to support the environment option 'ENABLE_QT_WAYLAND' which is set in the Dockerfile
• Update docker_build_qt_linux.sh to support building the additional qtwayland package from source

[DrogonMar]

We could try enabling both xcb and wayland QPA plugins

[DrogonMar]

Why do we disable EGL in QT here?
It seems like in build due to EGL being disabled its falling back to CPU rendering with Wayland.

Sorry for duplicate message, thought I could put a message on the code instead of a comment here

[DrogonMar]

I'm not sure on how building QT works so let me know if its just because it allows it to work or not but why are you enabling wayland-server?
A Wayland server is like Windows DWM (I dont know if this is correct but Window's component that handles drawing windows to the display), KDE or Gnome.
O3DE only needs to be a Wayland client.

[spham-amzn]

Why do we disable EGL in QT here? It seems like in build due to EGL being disabled its falling back to CPU rendering with Wayland.

Sorry for duplicate message, thought I could put a message on the code instead of a comment here

I don't remember, my guess is that we didn't want to build the eglfs plugin?

[DrogonMar]

I don't remember, my guess is that we didn't want to build the eglfs plugin?

Hmm, could we explicitly disable that and just allow normal EGL?
I would like to have the QT interface GPU accelerated.

[DrogonMar]

Awesome, that did work but we should disable the compositor/server part of it as thats under GPL3 which isn't good and we dont need it, look at the info here.

[DrogonMar]

We should remove the wayland server feature as its under GPLv3 and we don't need it

[DrogonMar]

It's still enabling the compositor feature, maybe -no-feature-wayland-server.