JIRA INFRA-763

This saves the state of hosts and items tables (search input,
ordering, paging position) so that it can be restored when the user
reloads a page.

See https://datatables.net/examples/basic_init/state_save.html

JIRA INFRA-608 #action In Progress

JIRA INFRA-575

JIRA INFRA-575 #action In Progress