fix(cli): Status code on api error

When using the json output of the cli (`-format=json`), a successful
call to the controller API would place the HTTP status code in the JSON
as `status_code`. However, if there was an error from the API the status
code would be placed in the JSON as `status`. In order to be consistent,
this adds a `status_code` field to the error response case. For
backwards compatibility it still populates `status` in the error case.

This inconsistency was missed partially due to a bug in the CLI tests.
The assertion on status code was not valid and would always be
successful. Thus this also fixes the assertions and tests.

version/feature_manager.go

@@ -23,6 +23,7 @@ type Feature int
 const (
 	UnknownFeature Feature = iota
 	MultiHopSessionFeature
+	IncludeStatusInCli
 )
 
 var featureMap map[Feature]MetadataConstraint
@@ -52,6 +53,10 @@ func init() {
 			Constraints: mustNewConstraints(">= 0.1.0"), // This feature exists at 0.1.0 and above
 		}
 	*/
+	featureMap[IncludeStatusInCli] = MetadataConstraint{
+		MetaInfo:    []Metadata{OSS, HCP},
+		Constraints: mustNewConstraints("< 0.14.0"),
+	}
 }
 
 func metadataStringToMetadata(m string) Metadata {