TS 102 232-1 CR0107 Update OIDs for TS 101 671 files

Update HI1NotificationOperations to version8(8)
Update HI2Operations to version19(19)
Add comments describing the history of both modules, and advise against further changes.

Clarify in the LI-PS-PDU comments that the HI1NotificationOperations
and HI2Operations modules are now provided with TS 102 232-1,
and not with TS 101 671 (historical).