* Adapt hacks to new config system
* Use distinct mkspec mingw-w64-g++ rather than
patching the existing win32-g++
* Testing QML and ANGLE is on TODO list
because it hasn't been tested since quite a time
* Make it possible to use shared and static Qt build (installed
in the same prefix) at the same time in a project.
* This allows compiling shared and static libraries depending on
Qt in one step.
* Static CMake modules are prefixed with 'Static', eg. 'StaticQt5Core'
and provide importet targets as eg. 'Qt5::static::Core'.