增加“关闭时最小化到托盘”的设置 (#166)

添加托盘设置，调整主进程代码架构

src/main/rendererEvents/index.js

@@ -0,0 +1,14 @@
+
+require('./request')
+// require('./appName')
+require('./progressBar')
+require('./trafficLight')
+require('./musicMeta')
+require('./selectDir')
+require('./setWindowSize')
+require('./showSaveDialog')
+require('./clearCache')
+require('./getCacheSize')
+require('./setIgnoreMouseEvent')
+require('./getEnvParams')
+require('./tray')