allow enable log with cli, limit log size (#1384)

* impl logger rpc
* use size based appender
* add log args

easytier/locales/app.yml

@@ -217,6 +217,12 @@ core_clap:
   check_config:
     en: Check config validity without starting the network
     zh-CN: 检查配置文件的有效性并退出
+  file_log_size_mb:
+    en: "per file log size in MB, default is 100MB"
+    zh-CN: "单个文件日志大小，单位 MB，默认值为 100MB"
+  file_log_count:
+    en: "max file log count, default is 10"
+    zh-CN: "最大文件日志数量，默认值为 10"
 
 core_app:
   panic_backtrace_save: