Some manual tests were converted by pro2cmake and looked like example
projects and tried to install into examples.  Use
qt_internal_add_manual_test for those.

The qml-client test referred to a header file that has been renamed.

Change-Id: I8f735f46c811355cc2a0f226cb33c6ca09cb3ac4
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>