CapabilityStatement rendering does not render general searchParam

[JohnMoehrke]

CapabilityStatement.rest.searchParam allows for specifying general applicable searchParam behaviors. These are not being rendered.

e.g. The following does not show.

...
    "searchParam" : [{
      "extension" : [{
        "url" : "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation",
        "valueCode" : "SHOULD"
      }],
      "name" : "_id",
      "definition" : "http://hl7.org/fhir/SearchParameter/Resource-id",
      "type" : "token",
      "documentation" : "Logical id allows to retrieve more than one in a single call"
    },
    {
      "extension" : [{
        "url" : "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation",
        "valueCode" : "SHOULD"
      }],
      "name" : "_lastUpdated",
      "definition" : "http://hl7.org/fhir/SearchParameter/Resource-lastUpdated",
      "type" : "date",
      "documentation" : "Allows filtering for only records that have changed since last query."
    },
    {
      "extension" : [{
        "url" : "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation",
        "valueCode" : "SHALL"
      }],
      "name" : "_count",
      "type" : "special",
      "documentation" : "Servers SHALL support the _count parameter for paging."
    }]
  }]
}