perl-mojolicious: new package

[Thomas: as noted by Arnout, remove trailing whitespace, and fix the
license to Artistic-2.0. Also, adjust the indentation in
package/Config.in to the new standard.]

Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>