ISTWCMS-4631: Create permission 'access manage toolbar item'

uw_cfg_common.permissions.yml

 'access content access form':
   title: 'Access content access form'
   description: 'Allows access to the content access form.'
+'access manage toolbar item':
+  title: 'Access "Manage" toolbar item'
+  description: 'Allows access to the toolbar item "Manage". Without this, "People" and "Reports" will appear under "Workbench" to those who have access.'
 'bypass home page protection':
   title: 'Bypass home page protection'
   description: 'Allows taking actions that are not normally allowed for the home page, such as unpublishing.'