feat: add release automation (#1)

.github/workflows/automerge-release-pr-bump.yml

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+name: Automerge release bump PR
+
+on:
+  pull_request:
+    types:
+      - labeled
+      - unlabeled
+      - synchronize
+      - opened
+      - edited
+      - ready_for_review
+      - reopened
+      - unlocked
+  pull_request_review:
+    types:
+      - submitted
+  check_suite: 
+    types:
+      - completed
+  status: {}
+
+jobs:
+
+  autoapprove:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Autoapproving
+        uses: hmarr/auto-approve-action@v2.0.0
+        if: github.actor == 'asyncapi-bot'
+        with:
+          github-token: "${{ secrets.GITHUB_TOKEN }}"
+
+  automerge:
+    needs: [autoapprove]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Automerging
+        uses: pascalgn/automerge-action@v0.7.5
+        if: github.actor == 'asyncapi-bot'
+        env:
+          GITHUB_TOKEN: "${{ secrets.GH_TOKEN }}"
+          GITHUB_LOGIN: asyncapi-bot
+          MERGE_LABELS: ""
+          MERGE_METHOD: "squash"
+          MERGE_COMMIT_MESSAGE: "pull-request-title"
+          MERGE_RETRIES: "10"
+          MERGE_RETRY_SLEEP: "10000"

.github/workflows/release.yml

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+name: Release
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  release:
+    name: 'Release NPM, GitHub'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v2
+      - name: Setup Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: 13
+      - name: Install dependencies
+        run: npm ci
+      - name: Run tests
+        run: npm test
+      - name: Get version from package.json before release step
+        id: initversion
+        run: echo "::set-output name=version::$(npm run get-version --silent)"
+      - name: Release to NPM and GitHub
+        id: release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GH_TOKEN }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+          GIT_AUTHOR_NAME: asyncapi-bot
+          GIT_AUTHOR_EMAIL: info@asyncapi.io
+          GIT_COMMITTER_NAME: asyncapi-bot
+          GIT_COMMITTER_EMAIL: info@asyncapi.io
+        run: npm run release
+      - name: Get version from package.json after release step
+        id: extractver
+        run: echo "::set-output name=version::$(npm run get-version --silent)"
+      - name: Create Pull Request with updated package files
+        if: steps.initversion.outputs.version != steps.extractver.outputs.version
+        uses: peter-evans/create-pull-request@v2.4.4
+        with:
+          token: ${{ secrets.GH_TOKEN }}
+          commit-message: 'chore(release): ${{ steps.extractver.outputs.version }}'
+          committer: asyncapi-bot <info@asyncapi.io>
+          author: asyncapi-bot <info@asyncapi.io>
+          title: 'chore(release): ${{ steps.extractver.outputs.version }}'
+          body: 'Version bump in package.json and package-lock.json for release [${{ steps.extractver.outputs.version }}](https://github.com/${{github.repository}}/releases/tag/v${{ steps.extractver.outputs.version }})'
+          branch: version-bump/${{ steps.extractver.outputs.version }}

.github/workflows/stale-issues-prs.yml

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+name: Manage stale issues and PRs
+
+on:
+  schedule:
+  - cron: "0 0 * * *"
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/stale@v1.1.0
+      with:
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
+        stale-issue-message: |
+          This issue has been automatically marked as stale because it has not had recent activity :sleeping:
+          It will be closed in 30 days if no further activity occurs. To unstale this issue, add a comment with detailed explanation. 
+          Thank you for your contributions :heart:
+        stale-pr-message: |
+          This pull request has been automatically marked as stale because it has not had recent activity :sleeping:
+          It will be closed in 30 days if no further activity occurs. To unstale this pull request, add a comment with detailed explanation. 
+          Thank you for your contributions :heart:
+        days-before-stale: 60
+        days-before-close: 30
+        stale-issue-label: stale
+        stale-pr-label: stale
+        exempt-issue-label: keep-open
+        exempt-pr-label: keep-open

.github/workflows/welcome-first-time-contrib.yml

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+name: Welcome first time contributors
+
+on:
+  pull_request:
+    types: 
+      - opened
+  issues:
+    types:
+      - opened
+
+jobs:
+  welcome:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/first-interaction@v1.0.0
+      with:
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
+        issue-message: |
+          Welcome to AsyncAPI. Thanks a lot for reporting your first issue.
+          Keep in mind there are also other channels you can use to interact with AsyncAPI community. For more details check out [this issue](https://github.com/asyncapi/asyncapi/issues/115).
+        pr-message: |
+          Welcome to AsyncAPI. Thanks a lot for creating your first pull request.
+          Keep in mind there are also other channels you can use to interact with AsyncAPI community. For more details check out [this issue](https://github.com/asyncapi/asyncapi/issues/115).

.gitignore

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+.DS_Store
+node_modules