Switches the webserver over to Granian

webserver.py

@@ -0,0 +1,16 @@
+import os
+
+if __name__ == "__main__":
+    from granian import Granian
+    from granian.constants import Interfaces
+
+    Granian(
+        "paperless.asgi:application",
+        interface=Interfaces.ASGI,
+        address=os.getenv("PAPERLESS_BIND_ADDR", "::"),
+        port=int(os.getenv("PAPERLESS_PORT", 8000)),
+        workers=int(os.getenv("PAPERLESS_WEBSERVER_WORKERS", 1)),
+        websockets=True,
+        # TODO, test this
+        url_path_prefix=os.getenv("PAPERLESS_FORCE_SCRIPT_NAME"),
+    ).serve()