Add typescript config for building standalone demo apps

Author: baileyluTCD

package.json

@@ -44,6 +44,7 @@
   },
   "scripts": {
     "build": "rimraf dist && tsc && tsc -p tsconfig.cjs.json && node build-scripts/dist-package-json",
+    "build:demo": "rimraf dist && tsc -p tsconfig.demo.json",
     "prepublish": "npm run build",
     "prepare": "husky install",
     "format:check": "prettier --check **/*.{ts,js} !**/dist/** !**/node_modules/**",

tsconfig.demo.json

@@ -0,0 +1,10 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "rootDir": ".",
+    "outDir": "./dist",
+    "resolveJsonModule": true
+  },
+  "include": ["src/**/*.ts", "demo/**/*.ts"],
+  "exclude": ["src/**/*.spec.ts", "demo/**/*.spec.ts"]
+}