Extend use of quoting mechanism for circuit-id to allow string initializers for binary options

We currently support setting "circuit-id" in host reservations by embedding a text string in sinqle-quotes:

      "circuit-id": "'charter950'",

Allowing this syntax for any binary option would be very convenient for users:

        {
            # Supply option 43,sub option 1 string data
            "name": "the-url",
            "code": 1,
            "data": "'https://example.this-is-a-long-url.imagine-it-as-hex-sting.com'",
            "space": "example-space"
        }

This allows users to readily support options that carry string data but can be empty. See #719 (closed) and #750.