feat(utils): Add jest-yaml-transform package.

packages/utils/jest-yaml-transform/.swcrc

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+{
+  "exclude": [".*.test.js$", ".*/tests/.*", ".*/__mocks__/.*"],
+  "$schema": "http://json.schemastore.org/swcrc",
+  "module": {
+    "type": "commonjs"
+  }
+}

packages/utils/jest-yaml-transform/README.md

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+# @lowdefy/jest-yaml-transform
+
+A jest transformer for YAML based off: https://github.com/sumwatshade/jest-transform-yaml

packages/utils/jest-yaml-transform/package.json

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+{
+  "name": "@lowdefy/jest-yaml-transform",
+  "version": "4.0.0-alpha.12",
+  "licence": "Apache-2.0",
+  "description": "A Jest Transform for YAML.",
+  "main": "./dist/index.js",
+  "homepage": "https://lowdefy.com",
+  "keywords": [
+    "lowdefy",
+    "yaml",
+    "jest",
+    "jest-transform",
+    "jest-yaml-transform"
+  ],
+  "bugs": {
+    "url": "https://github.com/lowdefy/lowdefy/issues"
+  },
+  "contributors": [
+    {
+      "name": "Gerrie van Wyk",
+      "url": "https://github.com/Gervwyk"
+    }
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/lowdefy/lowdefy.git"
+  },
+  "scripts": {
+    "build": "yarn swc",
+    "clean": "rm -rf dist",
+    "prepare": "yarn build",
+    "swc": "swc src --out-dir dist --config-file ./.swcrc --delete-dir-on-start"
+  },
+  "dependencies": {
+    "@swc/cli": "0.1.57",
+    "@swc/core": "1.2.194",
+    "@swc/jest": "0.2.21",
+    "jest": "28.1.0",
+    "yaml": "2.1.1"
+  },
+  "publishConfig": {
+    "access": "public"
+  }
+}

packages/utils/jest-yaml-transform/src/index.js

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+/*
+  Copyright 2020-2022 Lowdefy, Inc
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+import YAML from 'yaml';
+import crypto from 'crypto';
+
+function getCacheKey(fileData, filePath, options) {
+  const optionsString = typeof options === 'string' ? options : JSON.stringify(options);
+  return crypto.createHash('md5').update(fileData).update(optionsString).digest('hex');
+}
+
+function process(sourceText) {
+  return { code: `module.exports = ${JSON.stringify(YAML.parse(sourceText), null, '\t')}` };
+}
+
+const transformer = {
+  getCacheKey,
+  process,
+};
+
+export default transformer;