Yag: Yag 0.19.1.0 on beta branche

Hello, Yag v0.19.1.0 is available on the beta branch. Presentation https://www.youtube.com/watch?v=8iq41PNLiQQ New "Yag in 8 minutes" video https://www.youtube.com/watch?v=XcimkVGpPj0 New "First steps in Yag" video http…