Adding missing dependency.

Build.PL

@@ -9,8 +9,9 @@ my $build = Module::Build->new(
     dist_author   => 'Sergio Iglesias <contact@owlcode.tech>',
     dist_abstract => 'Emerald save editor lib.',
     requires      => {
-        'Glib::IO' => 0,
+        'Glib::IO'                    => 0,
         'Glib::Object::Introspection' => 0,
+        'Path::Tiny'                  => 0,
     },
 );
 $build->create_build_script;