Add option to link to pages from CK Editor Internal Link plugin

Per client request, when creating links within the CK Editor, there is a need to link to 'Pages' created via channel manager. The Internal Link plugin opens a wicket dialog that allows users to link to Documents, Images, and Assets but not Pages. The benefit would be that the links would be created based on the UUID of the SiteMapItem allowing the link to be updated dynamically if the page was moved.

Expected Result: Clicking the Internal Link button in the CK Editor opens a wicket dialog that allows a user to select a Page, Document, Image, or Asset as the resource to be linked to.

Actual Result: Clicking the Internal Link button in the CK Editor opens a wicket dialog that allows a user to select a Document, Image, or Asset as the resource to be linked to.

Steps to Reproduce:
1) Open a document with a Rich Text compound
2) Enter some text in the Rich Text field for the link
3) Click the Internal Link button in the Rich Text toolbar
4) In the Edit Link modal window, select Pages from the drop down in the top left
5) Realize that Pages is not an option and shake fist in air, again