CMake: Add a test for module includes

Change-Id: Ie9fd7929c1ea22f8acf51bafce64ade74d51a00e
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>

tests/auto/cmake/CMakeLists.txt

@@ -10,3 +10,10 @@ find_package(Qt5Core REQUIRED)
 include("${_Qt5CTestMacros}")
 
 expect_pass(test_modules)
+
+set(Qt5_MODULE_TEST_DEPENDS Network Gui)
+
+test_module_includes(
+  Qml QQmlEngine
+  Quick QQuickWindow
+)