LPS-37266 All ADD_PORTLET_DISPLAY_TEMPLATE permissions should be in its own resource

That way it's possible to show this permission only in the portlets that are meant to be in a page (as opposed to within the Control Panel or Site Administration) since those are the only ones where display templates is relevant. An additional benefit is that they can all be shown when configuring the permission of the "Application Display Templates" portlet itself.

Also shorten the name of the permission to "Add Display Template" since it's always shown in a context where the word Application is not necessary and could lead to confusion.
LPS-37266 Remove unneeded line break
LPS-37266 The column "scope" should only be shown for portlets that are added to a page or those within Site Administration but not for those in the Control Panel. For model resources it should only be shown for those that belong to a site. We figure that out by checking the portlet to which they "belong".

  Two special cases have to be considered: the PORTAL portlet and the Group model resource. The former must not have scope and the second must have it.
LPS-37266 Rename "scope" as "sites" and the value "portal" as "all sites"
LPS-37266 Show by default 50 elements per page in the summary (20 is too little for roles that have many permissions)
LPS-37266 Merge the action column with the "Sites" column
LPS-37266 New help messages reviewed by Rich
LPS-37266 Fix JavaScript error when removing a selected site

This was created when we added the "use" attribute to the script tag since it creates a namespace for everything inside.
LPS-37266 Apply source formatting from Nate
LPS-37266 Fix bug that prevented creating new ADT's

 This was caused by a previous change in the resource names that was not applied to the java classes
LPS-37386 edit_role_permissions_resource_action.jsp is no longer needed
LPS-37386 Change "delete" with "remove" and its associated confirmation message
LPS-26580 Remove property permissions.user.check.algorithm since it's no longer used
LPS-26580 Need to update VerifyProperties
LPS-37266 SF
LPS-37351
LPS-33077 Remove unused reference
LPS-33077 Regenerate
LPS-37343 backend for async staging
LPS-37343 Apply same changes to portlet staging