Add demo project and finish section on first test

Author: lmiller1990

.gitignore

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+demo-app/node_modules

demo-app/.gitignore

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+.DS_Store
+node_modules
+/dist
+
+# local env files
+.env.local
+.env.*.local
+
+# Log files
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Editor directories and files
+.idea
+.vscode
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw*

demo-app/.postcssrc.js

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+module.exports = {
+  plugins: {
+    autoprefixer: {}
+  }
+}

demo-app/babel.config.js

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+module.exports = {
+  presets: [
+    '@vue/app'
+  ]
+}

demo-app/jest.config.js

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+module.exports = {
+  moduleFileExtensions: [
+    'js',
+    'jsx',
+    'json',
+    'vue'
+  ],
+  transform: {
+    '^.+\\.vue$': 'vue-jest',
+    '.+\\.(css|styl|less|sass|scss|png|jpg|ttf|woff|woff2)$': 'jest-transform-stub',
+    '^.+\\.jsx?$': 'babel-jest'
+  },
+  moduleNameMapper: {
+    '^@/(.*)$': '<rootDir>/src/$1'
+  },
+  snapshotSerializers: [
+    'jest-serializer-vue'
+  ],
+  testMatch: [
+    '<rootDir>/tests/unit/**/*.spec.(js|jsx|ts|tsx)|**/__tests__/*.(js|jsx|ts|tsx)'
+  ]
+}