update func token use cache option

wechat/client.go

@@ -110,6 +110,12 @@ func (wc *Client) getTicket(now int64) (ticket string, err error) {
 	return
 }
 
+// TokenUseCache token from cache
+func (wc *Client) TokenUseCache(ok bool) {
+	wc.UseCacheToken = ok
+	wc.TokenFromCache = ok
+}
+
 // GetCodeURL get code 授权获取 OpenID URL
 // /connect/oauth2/authorize?appid=APPID&redirect_uri=REDIRECT_URI&response_type=code&scope=SCOPE&state=STATE#wechat_redirect
 // 转向到