Implement RTSP streaming functionality for cameras

- Added endpoints to start and stop RTSP streaming for cameras in the API.
- Enhanced CameraManager and CameraStreamer classes to manage RTSP streaming state and processes.
- Updated API documentation to include new RTSP streaming commands.
- Modified Docker configurations to include FFmpeg for RTSP streaming support.
- Adjusted MediaMTX settings for improved stream handling and timeout configurations.

camera-management-api/Dockerfile

@@ -6,6 +6,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     bash ca-certificates tar sudo \
     libusb-1.0-0 libgl1 libx11-6 libxext6 libxcb1 libgtk-3-0 \
     libusb-1.0-0-dev udev \
+    ffmpeg \
     && rm -rf /var/lib/apt/lists/*
 
 # Set working directory