Add Camera Elevation Field to Distinguish Relative Height from Absolute Altitude

[fe51]

Pitch

Introduce the concept of camera elevation.

Currently, the camera's altitude is stored as a single value, which represents the sum of:

• the ground point altitude
• the camera height above ground

However, for one frame localization and coverage simulation, the required data is the camera height relative to the ground, not the absolute altitude.

Requested changes

• Add a new field (elevation ? ) to the cameras table.
• Store the camera height relative to the ground in this field.
  Return this information in camera API responses, alongside existing CameraRead(?) fields.

it will allow systems that depend on relative camera positioning to use the correct height value, while preserving the existing absolute altitude data if needed.

Thanks a lot, happy to discuss it :)