[APP][Pro&Cloud] Shelly

@Meerjungfraumann @Hubert_B @AndyD

Does anyone of you have the skills to sideload the Shelly app using the Homey CLI? As mentioned I dont have the Wave Shutter and Blinds to test any changes. I need someone with some technical skills that can research and test a solution for the position update and a action card for setting the tilt.