Added simple dependency checks to all annotation processors

Change-Id: I8de5ca9a6e56bbcd32168cdb23474be4401171a7
diff --git a/t/annotation/xip_dependency.t b/t/annotation/xip_dependency.t
index 1f8a169..ca0e71b 100644
--- a/t/annotation/xip_dependency.t
+++ b/t/annotation/xip_dependency.t
@@ -2,6 +2,7 @@
 use strict;
 use warnings;
 use utf8;
+use KorAP::XML::Annotation::XIP::Dependency;
 use Test::More skip_all => 'Not yet implemented';
 use Scalar::Util qw/weaken/;
 use Data::Dumper;