Adding a click action to oh-gauge

Hi, I’m trying to add a click action to the oh-gauge widget. I’ve changed the hopefully right lines in my fork to add this functionality. I however have some issues with the building envoirment, but this is meant as a little place to tell me if this idea is stupid or if I made a mistake. I will hopefully manage to build it myself soon, but if someone else wants to do it, sure go ahead. If this really not suits this group you can just delete it or something. So, if someone has some time on their hands please check if I made a mistake with my implementation.

Okay, I now have an open PR #1175. (