Add the ability to dump properties from superclass

[tahirmt]

Currently customDump only dumps properties from the main mirror. This is missing all the properties from the superclass e.g

class Human {
    let name = "John"
    let email = "[email protected]"
    let age = 97
}

class Doctor: Human {
    let field = "Podiatry"
}

customDump(Doctor())

This prints Doctor(field: "Podiatry")

It would be nice if it could print this instead

Doctor(
  field: "Podiatry",
  name: "John",
  email: "[email protected]"
  age: 97
)