Provide a property creation context to `HalFormsOptionsFactory`

[reda-alaoui]

See #1695 (comment) for context.

There are some times where the list of possible HAL-FORMS options is constrained by a PathVariable. I propose to add a PropertyCreationContext that would provide intel allowing to have more dynamic ways of creating HAL-FORMS metatadas.

To begin, this PropertyCreationContext would only expose the AffordanceModel#link.

[odrotbohm]

Removing from 2.5 as the PR contains breaking changes.