Beginning of adding item_device forms (see #4366)


git-svn-id: https://forge.indepnet.net/svn/glpi/trunk@22339 35612d4c-9d10-0410-837c-bf9dd1be60d7
Clear table of components from item tab (see #4366)


git-svn-id: https://forge.indepnet.net/svn/glpi/trunk@22340 35612d4c-9d10-0410-837c-bf9dd1be60d7