Implement the new field api for the Seiko devices.
Implement the new field api for the Seiko devices.

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