Helpers cleanup
Clean up number of helper and definition files.
All helper functions should now go into Core/include/ACTS/Utilities/Helpers.h All definitions can now be found in Core/include/ACTS/Utilities/Definitions.h
Clean up number of helper and definition files.
All helper functions should now go into Core/include/ACTS/Utilities/Helpers.h All definitions can now be found in Core/include/ACTS/Utilities/Definitions.h