Add optional Apache users_apache_options, users_apache_index and users_apache_override arrays

This allows you to do this:

        users_apache_options:
          - -Indexes
          - +FollowSymLinks
          - -MultiViews
          - +IncludesNOEXEC
          - -ExecCGI
        users_apache_override:
          - AuthConfig
          - FileInfo
          - Indexes
          - Limit
          - Options=Indexes,FollowSymLinks,MultiViews,IncludesNOEXEC
          - Nonfatal=Override
        users_apache_index:
          - index.php
          - index.html
          - wsh.shtml

And if you don't then values from defaults/main.yml are used.