Merge pull request #7756 from haukepetersen/opt_test_addtesttarget

tests/bitarithm_timings/Makefile

tests/bitarithm_timings/tests/01-run.py

tests/bloom_bytes/Makefile

tests/bloom_bytes/tests/01-run.py

tests/buttons/Makefile

tests/buttons/tests/01-run.py

tests/cpp11_condition_variable/Makefile

tests/cpp11_condition_variable/tests/01-run.py

tests/cpp11_mutex/Makefile

tests/cpp11_mutex/tests/01-run.py

tests/cpp11_thread/Makefile

tests/cpp11_thread/tests/01-run.py