OpenCV4 Support for Botui

[ayush055]

Trying to add OpenCV4 support to Botui

Current issues

• Camera widget on Botui crashes upon opening
• Camera configuration in settings does not work

Link to fork: https://github.com/ayush055/botui/tree/opencv4-support

[Zacharyprime]

When updating to versions past jessie, the compiler throws warnings about the fact that we are using such an outdated opencv.

[Zacharyprime]

Moving to openCV4 is now a required task to get a WombatOS that we can build from scratch.

Erin and I have already started working on porting it.
As far as I've seen, all the functions we use still exist in CV4 so it shouldn't bee too bad.

[Zacharyprime]

I'm going to place the issues ayush mentioned above in a new issue because I do not think they are related to the version of opencv. I tested this on OpenCV4 and it still exists.