[FEATURE REQUEST] Support Parameter formats

[raveclassic]

Is your feature request related to a problem? Please describe.
Currently ws channel bindings allow you to define some query/header parameters: https://github.com/asyncapi/bindings/tree/master/websockets#channel-binding-object
However this solution lacks flexibility and power in comparison to swagger-2 or openapi-3 parameters. Especially in case of non-primitive parameters - there's no way to define how such parameters should be serialized. Swagger-2 spec has a collectionFormat and openapi-3 - style/explode for that.

Can't it be tackled using specification extensions?
IMO this should be part of the core spec.

Describe the solution you'd like
The best would be to replicate openapi-3 approach to describe parameters using in/style/explode (etc.) properties.

Describe alternatives you've considered
Not sure there're some which would allow the same level of flexibility and consistency.

Additional context
I'm writing a codegen tool based on swagger-2/openapi-3/asyncapi-2 specs which automatically handles connections that's why I need a solution to fully handle parameters.

[fmvilas]

Issue moved to asyncapi/bindings #8 via ZenHub

[fmvilas]

This issue belongs to the WebSockets binding, so I've moved it there.