feat: Add select2 and d3 js libraries

content/libraries/d3-plot/v0.4.3/.eslintrc.json

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+{
+  "extends": "eslint:recommended",
+  "parserOptions": {
+    "sourceType": "module",
+    "ecmaVersion": 2020
+  },
+  "env": {
+    "es6": true,
+    "node": true,
+    "browser": true
+  },
+  "rules": {
+    "no-cond-assign": 0,
+    "no-constant-condition": 0,
+    "no-sparse-arrays": 0,
+    "no-unexpected-multiline": 0,
+    "comma-dangle": ["error", "never"],
+    "semi": [2, "always"]
+  }
+}

content/libraries/d3-plot/v0.4.3/.github/eslint.json

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+{
+  "problemMatcher": [
+    {
+      "owner": "eslint-compact",
+      "pattern": [
+        {
+          "regexp": "^(.+):\\sline\\s(\\d+),\\scol\\s(\\d+),\\s(Error|Warning|Info)\\s-\\s(.+)\\s\\((.+)\\)$",
+          "file": 1,
+          "line": 2,
+          "column": 3,
+          "severity": 4,
+          "message": 5,
+          "code": 6
+        }
+      ]
+    }
+  ]
+}

content/libraries/d3-plot/v0.4.3/.github/workflows/node.js.yml

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+# https://help.github.com/actions/language-and-framework-guides/using-nodejs-with-github-actions
+
+name: Node.js CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [14.x]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: yarn --frozen-lockfile
+    - run: |
+        echo ::add-matcher::.github/eslint.json
+        yarn run eslint . --format=compact
+    - run: yarn test

content/libraries/d3-plot/v0.4.3/.gitignore

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+.DS_Store
+dist/
+node_modules/
+test/output/*-changed.svg
+test/output/*-changed.html

content/libraries/d3-plot/v0.4.3/LICENSE

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+Copyright 2020-2022 Observable, Inc.
+
+Permission to use, copy, modify, and/or distribute this software for any purpose
+with or without fee is hereby granted, provided that the above copyright notice
+and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
+THIS SOFTWARE.