Added pyrmv[speed] with ujson as a speedup

src/pyrmv/raw/__init__.py

@@ -1,3 +1,7 @@
+import contextlib
+
+import requests
+
 from .board_arrival import board_arrival
 from .board_departure import board_departure
 from .him_search import him_search
@@ -6,3 +10,8 @@ from .stop_by_coords import stop_by_coords
 from .stop_by_name import stop_by_name
 from .trip_find import trip_find
 from .trip_recon import trip_recon
+
+with contextlib.suppress(ImportError):
+    import ujson
+
+    requests.models.complexjson = ujson