Feature - Season and chapter selector for shows.

The user is able to select first the season and then the chapter when viewing a show.

Signed-off-by: José Carlos Andreu <joscandreu@gmail.com>
Merge pull request #12 in PA/popcorn-android from ~JOSCANDREU/popcorn-android:chapter_selection to development

* commit 'd148ba3f132cc1d82cc541bd967f9240fa00a9e2':
  Feature - Season and chapter selector for shows.