Running existing programs from backend

[mayacakmak]

It would be useful to have the ability to browse all available programs for a robot and trigger them directly from the robot back-end. We could have a small menu that opens on the back-end belly renderer that lists all the programs, has an icon for each and allows starting the program. The back-end would still communicate with the database to control itself, but it should be doable. Would be useful for running interaction studies and demos.. just turn on the robot and start an interaction w/o having to open something on a different device.