Migrating commits from Searach Guard

Migrating https://git.floragunn.com/search-guard/search-guard-suite-enterprise/ commits

• https://git.floragunn.com/search-guard/search-guard-suite-enterprise/-/commit/6651229d3862ed234ee57effc82d9e66b45c073a
• https://git.floragunn.com/search-guard/search-guard-suite-enterprise/-/commit/b7ea2b22ce14caf25a6a92f4b95106173d4a897b
• https://git.floragunn.com/search-guard/search-guard-suite-enterprise/-/commit/14edca7c12e42f10046f520524e119d57869d153
• https://git.floragunn.com/search-guard/search-guard-suite-enterprise/-/commit/bb4c2fa3d5264c2fe32d90ee58dfc57ff8eaa1b9
• https://git.floragunn.com/search-guard/search-guard-suite-enterprise/-/commit/fe867e17330965bfddcb7ad8d6d59cc686c2591c