Add tests for Theatre.js + popular setups in the ecosystem (#165)

This implements some basic infra for testing Theatre.js with popular setups such as npm/yarn/pnpm, webpack/vite/parcel, js/ts, etc.

So far, the only existing setup has been with create-react-app. Will add more in the future.

Co-authored-by: Fülöp <fulopkovacs@users.noreply.github.com>
Co-authored-by: Aria Minaei <aria.minaei@gmail.com>

ecosystem-tests/create-react-app/.gitignore

@@ -0,0 +1,23 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*