Also export 'require-dependency' rule

Author: jj-ivx

lib/index.js

@@ -3,4 +3,5 @@
 module.exports.rules = {
   'no-cross-imports': require('./rules/no-cross-imports'),
   'no-relative-imports': require('./rules/no-relative-imports'),
+  'require-dependency': require('./rules/require-dependency'),
 };