Allow LocalDate as path parameter

[wimdeblauwe]

It is currently possible to use UUID as a path parameter for example and this works fine. However, if you pass a LocalDate object, it does not work.

get("/api/reservations/{date}", LocalDate.now())

The reason seems to be that the LocalDate is serialized to "2024-04-10" and then URL encoded to %222024-04-10%22.

I believe that updating SerializationSupport#isSerializableCandidate() to include LocalDate.class could fix it as it would use the toString() of LocalDate instead of letting a JSON serializer serialize the object.

As a workaround, you can currently manually call the toString() on the LocalDate object:

get("/api/reservations/{date}", LocalDate.now().toString())

[taeyeon-Kim]

maybe fixed at #1756