FIBOFTF2 — Implement FinancialDates for a number of properties

With the introduction of the FinancialDates ontology, there are many properties which are currently framed as datatype properties with the dateTime datatype but are actually intended to refer to dates. Now that the concept of Date is available as a class in FinancialDates a number of properties in different ontologies should be replaced by object properties with a range of Date.

Many of these properties are in the Relations ontology, which does not import FinancialDates, an therefore these properties would also need to be moved to the ontologies in which they are used.

Merge the changes for FinancialDates implemented with the changes for property domains and ranges.

Merge this issue with FBO-FTF2-10 Property Domains and Ranges.

The work description and the formal Revised Text material for FIBOFTF2-10 will include actions in response to this issue alongside the overall domains and ranges issue.