Sort-of-working flask runtime

runtimes/flask/template/funko.py.j2

@@ -0,0 +1,7 @@
+from flask import Flask
+
+app = Flask("{{name}}")
+
+@app.route('/')
+def handle(req):
+    return "Hello World from Flask!"

runtimes/flask/template/funko.yml.j2

@@ -0,0 +1,2 @@
+name: {{ name }}
+runtime: {{ runtime }}

runtimes/flask/template/requirements.txt

@@ -0,0 +1 @@
+flask