Add support for the pressure samples.
Add support for the pressure samples.

henrik242/libdivecomputer,Poltsi/libdivecomputer-vms,josh-wambua/libdivecomputer,henrik242/libdivecomputer,venkateshshukla/libdivecomputer,glance-/libdivecomputer,glance-/libdivecomputer,josh-wambua/libdivecomputer,venkateshshukla/libdivecomputer