PIM-1927 Move controllers and routing (split Catalog)

Bug fix: [no]
Feature addition: [no]
Backwards compatibility break: [yes]
Unit test passes: [yes]
Specs passes: [yes]
Behat scenario passes: [yes]
Checkstyle issues: [no]
ChangeLog updated: [yes]
Fixes the following jira:
 - PIM-1927