* Add support for keyed_groups, groups, and compose options to linode inventory
plugin
* Changed instance,label to instance.label
various lint fixes around spacing
* Change self._strict to a local variable as it's no longer needed in other
methods
* Modified DESCRIPTION to add a version_added property to each of the new options.
* Add Changelog fragment
* Minor changes to the changelog fragment
* Replace 'the standard' with 'support for'
* Update description to note that the inventory groups are created by default
from the group attribute not tags and that the group attribute has been
depricated by Linode.
* Remove trailing space in description
* Add period to changelog fragment
Co-authored-by: Clinton Bunch <cdbunch@zeus.int.zentaur.org>
