Add "security" as nav-item to project sidebar

Moves the security dashboard and dependency list into it's own
top-level navigation item named 'Securty & Compliance', within the
project's sidebar.

This should only affect EE, since the template changes only touch
partials that get conditionally rendered and only exist in EE.

app/views/layouts/nav/sidebar/_project.html.haml

@@ -34,10 +34,6 @@
               = link_to project_releases_path(@project), title: _('Releases'), class: 'shortcuts-project-releases' do
                 %span= _('Releases')
 
-          = render_if_exists 'projects/sidebar/security_dashboard'
-
-          = render_if_exists 'projects/sidebar/dependencies'
-
           - if can?(current_user, :read_cycle_analytics, @project)
             = nav_link(path: 'cycle_analytics#show') do
               = link_to project_cycle_analytics_path(@project), title: _('Cycle Analytics'), class: 'shortcuts-project-cycle-analytics' do
@@ -203,6 +199,8 @@
                   %span
                     = _('Charts')
 
+      = render_if_exists 'layouts/nav/sidebar/project_security_link' # EE-specific
+
       - if project_nav_tab? :operations
         = nav_link(controller: sidebar_operations_paths) do
           = link_to sidebar_operations_link_path, class: 'shortcuts-operations qa-link-operations' do