[AS7-947] prepare for :reload
[AS7-947] move lifecycle ops to the running server resource
[AS7-947] allow operation handlers overrides for proxies
[AS7-947] expose lifyecycle ops for running servers
[AS7-947] introduce a reloading state
[AS7-947] add support for composite operations
[AS7-947] fix validate-address operation
[AS7-947] fix rebase issues
[AS7-947] use the controller permit for the reload operation