Squashed 'CMake/Basis/' changes from 030ecb9..93d4837
Squashed 'CMake/Basis/' changes from 030ecb9..93d4837

93d4837 #506 fix: Show error message when BASIS_TEST_LIBRARY or BASIS_TEST_MAIN_LIBRARY not set

git-subtree-dir: CMake/Basis
git-subtree-split: 93d48378068217bacd45ae56c5e877b09f78ffd8

BioMedIA/MIRTK,schuhschuh/MIRTK,stefanpsz/MIRTK,schuhschuh/MIRTK,schuhschuh/MIRTK,stefanpsz/MIRTK,schuhschuh/MIRTK,BioMedIA/MIRTK,BioMedIA/MIRTK,BioMedIA/MIRTK,stefanpsz/MIRTK,stefanpsz/MIRTK