CMake Boost: suppress annoying and pointless warnings

cmake/BornAgain/FindLibraries.cmake

@@ -67,6 +67,7 @@ set(Boost_NO_BOOST_CMAKE ON) # prevent shortcut
 set(Boost_USE_STATIC_LIBS OFF)
 set(Boost_USE_MULTITHREADED ON)
 set(Boost_USE_STATIC_RUNTIME OFF)
+set(Boost_NO_WARN_NEW_VERSIONS ON) # suppress annoying and pointless warnings
 add_definitions(-DBOOST_ALL_DYN_LINK) # line is needed for MSVC
 add_definitions(-DBOOST_UUID_FORCE_AUTO_LINK) # line is needed to link bcrypt for MSVC
 # amends problems with bimap and MSVC, serialization of bimap is currently not needed