Zed2i -> Zed rename

[m-decoster]

Describe your changes

fix #151

Renamed Zed2i to Zed and zed2i.py to zed.py, but kept the old names as aliases for backwards compatibility.

The Zed2i class now inherits from Zed without making any changes, such that existing code using Zed2i will still work. A @deprecated decorator has been added to the Zed2i class.

Alternatively, we could not deprecate Zed2i, but add a second class ZedMini that also inherits from Zed. But since the Zed SDK itself is generic over the different camera types, I'm a proponent of a generic Zed class in airo-mono and deprecating the old Zed2i, as I've done here.

Thoughts @tlpss @Victorlouisdg ?

Checklist

• Have you modified the changelog?
• If you made changes to the hardware interfaces, have you tested them using the manual tests?

[tlpss]

thanks for making it more generic!

I think this is a good way to handle the change, I had the same in mind.

maybe one suggestion: keep the Zed2i class in the Zed2i file instead of in the zed file? makes more sense imo.

Questions:

• does our class support all zed cameras? (resolution profiles etc)
• do we need separate tests for the zed mini?

[tlpss]

additional question:

do we already want to update all use of the Zed2i in the airo-mono codebase? e.g. https://github.com/airo-ugent/airo-mono/blob/zed_refactor/airo-camera-toolkit/airo_camera_toolkit/cameras/camera_discovery.py

[m-decoster]

maybe one suggestion: keep the Zed2i class in the Zed2i file instead of in the zed file? makes more sense imo.

Good idea, will do

Questions:

• does our class support all zed cameras? (resolution profiles etc)

It supports ZED, ZED 2/2i and ZED Mini. For supporting the GMSL cameras we need to add additional resolution profiles: https://www.stereolabs.com/docs/video/camera-controls#resolution-for-gmsl-cameras-zed-xx-mini

I could add these if we want.

• do we need separate tests for the zed mini?

The Zed mini works out of the box with the old Zed2i class and all manual tests pass*, so I don't think this is needed per se

[tlpss]

• does our class support all zed cameras? (resolution profiles etc)

It supports ZED, ZED 2/2i and ZED Mini. For supporting the GMSL cameras we need to add additional resolution profiles: https://www.stereolabs.com/docs/video/camera-controls#resolution-for-gmsl-cameras-zed-xx-mini

I could add these if we want.

No don't think we will use them in the near future. So if it works for all Zed 1 and zed 2 cameras, we're good I think.

• do we need separate tests for the zed mini?

The Zed mini works out of the box with the old Zed2i class and all manual tests pass*, so I don't think this is needed per se

ok, great!