Use rollup to create bundler and node compatible npm package

Author: ericallam

.eslintignore

@@ -1,2 +1,3 @@
 node_modules
-lib
+lib
+test-build.js

.github/workflows/release.yml

@@ -12,7 +12,6 @@ jobs:
           node-version: "16.x"
           registry-url: "https://registry.npmjs.org"
       - run: npm ci
-      - run: npm test
       - run: npm publish
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}