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

.github/ISSUE_TEMPLATE/BUG_REPORT.md

@@ -0,0 +1,38 @@
+---
+name: Bug Report
+about: If you would like to report a issue to Seata, please use this template.
+
+
+---
+
+- [ ] I have searched the [issues](https://github.com/seata/seata/issues) of this repository and believe that this is not a duplicate.
+
+### Ⅰ. Issue Description
+
+
+### Ⅱ. Describe what happened
+
+  If there is an exception, please attach the exception trace:
+
+```
+Just paste your stack trace here!
+```
+
+
+### Ⅲ. Describe what you expected to happen
+
+
+### Ⅳ. How to reproduce it (as minimally and precisely as possible)
+
+1. xxx
+2. xxx
+3. xxx
+
+### Ⅴ. Anything else we need to know?
+
+
+### Ⅵ. Environment:
+
+- JDK version :
+- OS :
+- Others:

.github/ISSUE_TEMPLATE/FEATURE_REQUEST.md

@@ -0,0 +1,16 @@
+---
+name: Feature Request
+about: Suggest an idea for Seata
+
+---
+
+## Why you need it?
+ Is your feature request related to a problem? Please describe in details
+
+
+## How it could be?
+A clear and concise description of what you want to happen. You can explain more about input of the feature, and output of it.
+
+
+## Other related information
+Add any other context or screenshots about the feature request here.

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,17 @@
+<!-- Please make sure you have read and understood the contributing guidelines -->
+
+### Ⅰ. Describe what this PR did
+
+
+### Ⅱ. Does this pull request fix one issue?
+<!-- If that, add "fixes #xxx" below in the next line, for example, fixes #97. -->
+
+
+### Ⅲ. Why don't you add test cases (unit test/integration test)? 
+
+
+### Ⅳ. Describe how to verify it
+
+
+### Ⅴ. Special notes for reviews
+

.github/workflows/build.yml

@@ -0,0 +1,41 @@
+name: build
+
+on:
+  push:
+    branches: [ develop,master ]
+  pull_request:
+    branches: [ develop,master ]
+
+jobs:
+  build:
+
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        java: [8, 11]
+        os: [ ubuntu-18.04 ]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up JDK
+        uses: actions/setup-java@v1
+        with:
+          java-version: ${{ matrix.java }}
+      - name: Set up ENV
+        # https://docs.github.com/en/free-pro-team@latest/actions/reference/workflow-commands-for-github-actions#setting-an-environment-variable
+        run: if [ "${{ matrix.java }}" == "8" ]; then
+                echo "IMAGE_NAME=openjdk:8u212-jre-alpine" >> $GITHUB_ENV;
+             elif [ "${{ matrix.java }}" == "11" ]; then
+                echo "IMAGE_NAME=openjdk:11-jre-stretch" >> $GITHUB_ENV;
+             fi
+      - name: Build with Maven
+        env:
+          REGISTRY_USERNAME: ${{ secrets.REGISTRY_USERNAME }}
+          REGISTRY_PASSWORD: ${{ secrets.REGISTRY_PASSWORD }}
+        # https://docs.github.com/cn/free-pro-team@latest/actions/reference/context-and-expression-syntax-for-github-actions#github-context
+        run: if [ "${{github.event_name}}" == "push" ] && [ "${{github.ref}}" == "refs/heads/develop" ]; then
+            ./mvnw clean install -DskipTests=false -Dcheckstyle.skip=false -Dlicense.skip=false -P image -B -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn;
+            else
+             ./mvnw clean install -DskipTests=false -Dcheckstyle.skip=false -Dlicense.skip=false -B -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn;
+             fi
+      - name: Codecov
+        uses: codecov/codecov-action@v1