Pressures in Pa for genetic ancillary fitter

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
Ancillary saturation solver works a bit better, still some issues.

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
Merge branch 'master' of https://github.com/coolprop/coolprop
Squashed MSVC errors about pow functions

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