Rename test_tdf149714.cxx to test_tdf149714_bits_per_pixel.cxx to provide a human-readable hint about the purpose of the test. Also update CppunitTest_basic_macros.mk accordingly. Change-Id: Iba5db7ebed9bc1aeafe1b365243e1e0ca8216070 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/199692 Tested-by: Jenkins Reviewed-by: Ilmari Lauhakangas <ilmari.lauhakangas@libreoffice.org>