Add test utilities and scripts

- Add test directory with main.py, p2p.py, ws.py
- Add send_empty_json.py WebSocket test script

test/main.py

@@ -0,0 +1,12 @@
+from microdot import Microdot
+from src.profile import profile_app
+
+app = Microdot()
+
+@app.route('/')
+async def index(request):
+    return 'Hello, world!'
+
+app.mount(profile_app, url_prefix="/profile")
+
+app.run(port=8080, debug=True)