Add Test::Deep to Goodie template

We can now use Test::Deep for tests, ain't that awesome?

template/t/Example.t

@@ -3,6 +3,7 @@
 use strict;
 use warnings;
 use Test::More;
+use Test::Deep;
 use DDG::Test::Goodie;
 
 zci answer_type => "<: $ia_id :>";