Moved the 'CmsController' to the 'Pulse\Frontend' namespace in order to better organize the directory and namespace structures.
Added 'Pulse\Cms\PageRepository::all' method that index and paginates all pages.
Added indexPosts and showPosts actions to 'Frontend\CmsController' in order to retrieve results for the user.
Adjusted variable name in 'Pulse\Cms\PageRepository' in order to be more generic, since the implementation is also used by the 'Pulse\Cms\PostRepository'