#353 Add BUILD_BASIS_UTILITIES_FOR_<LANG> options. Do not build C++ utilities if not used by default.
#353 Add BASIS C++ utilities target if not used by any target but its build forced.
#353 Document new BUILD_BASIS_UTILITIES_FOR_<LANG> options.
Merge remote-tracking branch 'github/feature/#353-force-configuration-of-utilities-or-skip-if-not-used' into develop