Better to return tokenBindingId as cnf in the jwt token for client-request binding type

[VivekVinushanth]

Is your suggestion related to an experience ? Please describe.

With this change, for the client-request token binding type, users will be able to obtain the tokenBindingId value they have sent in the token request. Though the JWT token returns a tokenBinding reference which is a hashed value, for this binding type, applications might be interested in knowing the value itself.

Describe the improvement
Return tokenBindingId as CNF in the jwt token for client-request binding type

Additional context

[VivekVinushanth]

Being fixed with

• Add tokenBindingId to JWT wso2-extensions/identity-inbound-auth-oauth#2352

[VivekVinushanth]

Need to consider Introspection as well.