Enochecker3

- make any exception in async socket's open_connection result in OFFLINE (14)
- add py3.10 as supported version (16)

- only try to format log message if args are of correct type and length (12)

- improve exception/timeout handling (11)
- add correct attributes to log message for exception trace (10)
- change enologmsg to use camelCase aliases instead of property names (9)
- FlagSearcher: search for flags with bytes regex and return bytes (4)
- log full exception trace (not just exception type) on internal error for debugging purposes (6)
- cleanup enologmessage generation (5)

- allow specifying multiple variant_ids in a decorator

- add `DependencyInjector` type

- fix AsyncSocket