Change field include and exclude handling

This changes the implementation of the include/exclude field handling
so that it is done explicitly in the API handlers rather than
implicitly in the middleware layer.  It also adds support for the
"all_fields" query parameter.

The response behavior will now be that any optional field that is nil
will be excluded from responses unless the "all_fields" parameter is
set, or the field name appears in the "fields=" query parameter.

Signed-off-by: Allain Legacy <[email protected]>

go.mod

@@ -14,7 +14,6 @@ require (
 	github.com/google/uuid v1.6.0
 	github.com/jackc/pgerrcode v0.0.0-20220416144525-469b46aa5efa
 	github.com/jackc/pgx/v5 v5.7.2
-	github.com/json-iterator/go v1.1.12
 	github.com/kelseyhightower/envconfig v1.4.0
 	github.com/oapi-codegen/nethttp-middleware v1.0.2
 	github.com/oapi-codegen/oapi-codegen/v2 v2.4.1
@@ -94,6 +93,7 @@ require (
 	github.com/jinzhu/inflection v1.0.0 // indirect
 	github.com/jinzhu/now v1.1.4 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/compress v1.17.9 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/metal3-io/baremetal-operator/apis v0.5.1 // indirect