Support verbose output of the test suites

[RonEld]

generate add ctest test-suites, with the --verbose argument to be given
to the test suites.
The verbose output will be shown only if ctest is run with -v parameter
The verbose argument is to the test-suites, only when run through ctest

[andresag01]

This PR is related to #981.

[hanno-becker]

I'm ok with the change, too. The only thing I noticed is that now make test using the shipped makefiles differs from make test using CMake-generated makefiles: In the shipped makefiles, make test leads to ./tests/scripts/run-test-suites.pl being executed, calling the test suites without the --verbose argument, while for the CMake generated ones, ctest is called, which now uses --verbose.

[RonEld]

Hi @hanno-arm
Thanks for your comment. Actually, even when running the ctests, you will not see the output, unless you run the ctest with -V or -VV parameter. This PR is to support -V parameter for ctest , that will actually verbose the test_suites. Perhaps we should modify ./tests/scripts/run-test-suites.pl to support running the tests with verbose, but I don't think it's really needed, at the time being