[autotests] Extend SlidingPopupsTest::testWithOtherEffect

Test more combinations of other effects together with sliding popups.
The problem does not only exist for scale in but for pretty much any
effect that the ordering in which the effects get loaded makes the test
pass or fail.

Some effects require OpenGL, as build.kde.org does not support OpenGL
compositing (yet), the tests only do the OpenGL cases if an OpenGL
compositor could be created.

CCBUG: 336866