This is a huge commit, it does following things: (#1942)

1. Remove ks-iam standalone binary, move it to ks-apiserver
2. Generate all devops apis inside kubesphere repository, no need to
import s2ioperator.
3. Reorganize ldap code, make it more flexible to use.

pkg/apiserver/query/field.go

@@ -6,6 +6,7 @@ const (
 	FieldName                = "name"
 	FieldCreationTimeStamp   = "creationTimestamp"
 	FieldLastUpdateTimestamp = "lastUpdateTimestamp"
+	FieldLabel               = "label"
 	FieldNamespace           = "namespace"
 	FieldStatus              = "status"
 	FieldApplication         = "application"