Feat[MQB]: add authentication with basic logic

[emelialei88]

Broker side:

• Added support for the authentication protocol.
• Introduced a new AuthenticationEvent event type.
• Implemented the authenticator component to handle authentication logic, using AuthenticationContext to encapsulate relevant context data.
• Updated InitialConnectionHandler to handle the authentication flow.

Client side:

• Renamed NegotiationChannelFactory to InitialConnectionChannelFactory, which now handles both authentication and negotiation.
• Updated bmqimp_application to pass in an AuthenticationMessage.