Add support for emotion analysis

[arnoudplantinga]

I don't believe it's currently possible to use Kairos' emotion analysis. I'd love to see that feature!

[cschwem2er]

Hi @arnoudplantinga. That is true, in this first version of facerec emotion analysis is not yet supported. The reason for this as that for some of my tests, the corresponding API endpoints did not return valid data. I contacted the Kairos support team and am still waiting for a response, so maybe there will be an update soon.

[arnoudplantinga]

Awesome, thanks!

[cschwem2er]

I just received a response from the Kairos team. They are currently in the process of combining the API endpoints for face recognition and emotion analysis. As soon as this is done, I will work on updating the facerec package.