Updated Excel example

Signed-off-by: Ian bell <ian.h.bell@gmail.com>
Removed larger and useless files from the vault

Signed-off-by: Ian bell <ian.h.bell@gmail.com>
Removed Props1 and Props1SI functions (still supported in DLL wrapper)

Signed-off-by: Ian bell <ian.h.bell@gmail.com>
Added Fortran 77 wrappers for PropsSI and fixed HAPropsSI wrapper

Signed-off-by: Ian bell <ian.h.bell@gmail.com>
Tidying up style

Signed-off-by: Ian bell <ian.h.bell@gmail.com>
Moved saturation routines into their own cpp/h file

Signed-off-by: Ian bell <ian.h.bell@gmail.com>