Improve usability for bounded contexts

[schananas]

Enhancement Description

Check and design better usability in cases where clients have multiple bounded context.
In that case, the tenant != context, as the tenant should belong to any of these bounded contexts.

Note that this enhancement focuses on the multi-context support from Axon Server, which you can use to define distinct bounded contexts.
Combining that behavior with a desire for multi-tenancy requires additional work in the Multitenancy Extension.

Current Behaviour

Each context is considered a separate tenant, mapped 1:1.