feat: Add TypeScript support (#9550)

types/tsconfig.json

@@ -0,0 +1,18 @@
+{
+  "compilerOptions": {
+      "module": "commonjs",
+      "lib": ["es6"],
+      "noImplicitAny": true,
+      "noImplicitThis": true,
+      "strictFunctionTypes": true,
+      "strictNullChecks": true,
+      "types": [],
+      "noEmit": true,
+      "forceConsistentCasingInFileNames": true,
+
+      // If the library is an external module (uses `export`), this allows your test file to import "mylib" instead of "./index".
+      // If the library is global (cannot be imported via `import` or `require`), leave this out.
+      "baseUrl": ".",
+      "paths": { "parse": ["."] }
+  }
+}