New way of building/running tests for Qt modules

In the current CI, the tests are compiled during test phase, which means that we will not be able to run on embedded devices that do not have the build environment setup correctly nor use the newest OS version to develop the binaries and then run tests on the older versions.

This causes overhead for the CI project because it will need to support multiple older OS versions and maintain provisioning scripts for them despite we are not interested on developing on older OS versions.

The new workflow is described on this wiki page:

https://intranet.qt.io/x/cAUwB

The CI test instance

 http://coin.intra.qt.io:8090/coin/scheduler

can be used for testing fixes for the modules that are failing to meet the requirements described in the previous wiki link. If there are modules that are failing, they should be linked with this epic.