Yet another company will charge its customers more money for using existing features as the subscription-based smart home becomes the norm. Amazon-owned Ring is making several free features part of its paid subscription program starting on March 29th. As of that date, if you have a Ring video doorbell or camera, you will no longer have access to Home and Away Modes in the app without a paid subscription, starting at $3.99 a month ($39.99 a year). Modes is a simple way to tell all your…