Feature Request: show mappings of obsolete/deprecated terms to replacements via 'replaced_by'

[dosumis]

Deprecated terms are mapped to replacements via the replaced_by annotation property in a large number of the ontologies we consume.

It would be very useful if these mappings were available through OxO - especially the API. This would allow resources that use ontologies for annotation to painlessly update their annotations where mappings exist. For this to work - they would need to be distinguishable from xref mappings (or any other types). Will the move to SSSOM allow this?