Add disableCache/disableExpire option for dns client

option/dns.go

@@ -2,11 +2,17 @@ package option
 
 type DNSOptions struct {
 	Servers []DNSServerOptions `json:"servers,omitempty"`
+	DNSClientOptions
+}
+
+type DNSClientOptions struct {
+	DisableCache  bool `json:"disable_cache,omitempty"`
+	DisableExpire bool `json:"disable_expire,omitempty"`
 }
 
 type DNSServerOptions struct {
 	Tag             string `json:"tag,omitempty"`
 	Address         string `json:"address"`
-	Detour          string `json:"detour,omitempty"`
 	AddressResolver string `json:"address_resolver,omitempty"`
+	DialerOptions
 }