First images on labthings-fastapi

We now have very basic camera and stage support.

src/openflexure_microscope_server/server.py

@@ -0,0 +1,15 @@
+from __future__ import annotations
+import logging
+from labthings_fastapi.thing_server import ThingServer
+from labthings_sangaboard import SangaboardThing
+from labthings_picamera2.thing import StreamingPiCamera2
+
+logging.basicConfig(level=logging.INFO)
+
+thing_server = ThingServer()
+camera = StreamingPiCamera2()
+thing_server.add_thing(camera, "/camera")
+stage = SangaboardThing()
+thing_server.add_thing(stage, "/stage")
+
+app = thing_server.app