Removed obsolete MigrateShell

Conflicts:
	Console/Command/MigrateShell.php
Fixed issue with menu link fields when fetching more data via resources. refs #19191
added setBreadcrumbs
Added extra validation to menu link for parent_id. refs #19197
Addedsome extra parameters in MenuLinkActions
Unfinished version of README file. refs #10005
Finalized README file. refs #10005
Fixed merge conflict maxDepth option setter in sitemap method MenusHelper
Updated README for 0.4 branch. Documented setBreadcrumbs method. refs #10005