yaml os discovery now respects the os mib_dir definition
mib_dir now only allows strings, not arrays
changed schema validation to account for that
consolidated dell mibs, no reason for them to be spread out
* New OS: Aruba Instant
* New OS: Aruba Instant
* recreate test data
* remove aruba_instant test data
* remove empty file includes/definitions/discovery/aruba-instant.yaml
* fix state sensor discovery
* remove minor changes to includes/polling/functions.inc.phpwq
* move mac helper functions to Rewrite class
* simplify snmpwalk_group usage, general code cleanup
* fixes
* fixes
* fixes
* fixes
* fixes
* fixes
* recreate test data for 105 variant
* Add Client sensors for 8.4.0.0+
* begin stream-lining discovery and polling. separating discovery functions
* update test data
* update test data
* update test data
* improve mempool discovery/polling, clean up os polling, improve state discovery, improve os definition, misc fixes to wireless sensors module
* attempt to implement custom AP and client discovery and polling
* code fixes
* re-add ap count top graph
* more fixes
* more fixes
* more fixes
* more fixes
* remove some debugging, update test data
* code cleanup
* code cleanup
* address some scrutinizer warnings
