Fixes #10408 - adding checkbox in hosts-index page for keeping selected hosts

Fixes #11461 - Remove 'global scope' column in host/hostgroup parameters form

Fixes #11437 - do not modify frozen arrays in select_f helper

Fixes #10731 - Allow matches to merge with default values

Fixes #9453 - improve tooltips on puppetclass selection forms

Fixes #11560 - foreman-debug counts denials correctly

Fixes #11581 - Headlines extracted in the selected hosts modal

fixes #11571 - resetting column information in migration

Fixes #11006, #11004 - Facts % is now in the center of the graph

Additionally, the value represented in the graph is trimmed for
readability, and a legend was added.

fixes #11425 - adding lookup_value_matcher to host and hostgroup to make db schema more logical