Consolidate the BaseCamera, CameraStub, and CameraProtocol, move StreamingPiCamera2 to this repo

src/openflexure_microscope_server/things/camera/simulation.py

@@ -22,12 +22,11 @@ from scipy.ndimage import gaussian_filter
 from labthings_fastapi.utilities import get_blocking_portal
 from labthings_fastapi.decorators import thing_action, thing_property
 from labthings_fastapi.dependencies.metadata import GetThingStates
-from labthings_fastapi.outputs.mjpeg_stream import MJPEGStreamDescriptor
 from labthings_fastapi.types.numpy import NDArray
 from labthings_fastapi.server import ThingServer
 from pydantic import RootModel
 
-from . import BaseCamera, JPEGBlob
+from . import BaseCamera, JPEGBlob, ArrayModel
 from ..stage import StageProtocol as Stage
 
 # The ratio between "motor" steps and pixels
@@ -35,11 +34,6 @@ from ..stage import StageProtocol as Stage
 RATIO = 0.2
 
 
-class ArrayModel(RootModel):
-    """A model for an array"""
-
-    root: NDArray
-
 
 class SimulatedCamera(BaseCamera):
     """A Thing representing an OpenCV camera"""
@@ -160,9 +154,6 @@ class SimulatedCamera(BaseCamera):
             return self._capture_thread.is_alive()
         return False
 
-    mjpeg_stream = MJPEGStreamDescriptor()
-    lores_mjpeg_stream = MJPEGStreamDescriptor()
-
     def _capture_frames(self):
         portal = get_blocking_portal(self)
         while self._capture_enabled: