chore(project): 添加项目配置文件和忽略规则

- 添加 Babel 配置文件支持 ES6+ 语法转换
- 添加 ESLint 忽略规则和配置文件
- 添加 Git 忽略规则文件
- 添加 Travis CI 配置文件
- 添加 1.4.2 版本变更日志文件
- 添加 Helm 图表辅助模板文件
- 添加 Helm 忽略规则文件

saga/seata-saga-statemachine-designer/README.md

@@ -0,0 +1,25 @@
+English | [简体中文](README.zh-CN.md)
+
+# Seata Saga StateMachine Designer
+
+A visual graph Seata Saga StateMachine Designer based on [GGEditor](https://github.com/alibaba/GGEditor).
+
+## run
+
+```sh
+$ git clone https://github.com/seata/seata.git
+$ cd saga/seata-saga-statemachine-designer
+$ npm install
+$ npm start
+```
+
+## build a package
+```sh
+$ cd saga/saga-statemachine-designer
+$ npm build
+```
+
+copy 'index.html' and 'dist' directory to static html directory of web server
+
+## Usage
+To understand the state types of the state machine, please see [document of Saga](http://seata.io/zh-cn/docs/user/saga.html). After using the designer to complete the design of the state machine, you can click the 'Json View' button on the toolbar to switch to the Json view, and save the Json to the project of your own application. Although the Json generated by the designer is different from the standard Json of the Saga state machine (because the json generated by the designer has layout information), the state machine can be directly loaded and it will be converted into the Json of the Saga state machine standard.