Three new samples: one with AdRules and Widevine, one with HLS and FreeWheel, and one with HLS and IMA.

A question:  mostly because of Emacs formatting I've started to put the @Override annotation on the same line as the method declaration, i.e. "@Override public void methodName(...)", and I'm wondering if others consider this good, bad or indifferent.  My personal take is mostly indifferent but I'm curious to know what other people think before I inflict a style on people that may have downsides.