Fix for #46120

[FAMEEXE]

Allow multiple IClaimsTransformations

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Summary of the changes (Less than 80 chars)

Description

This PR adresses the issue mentioned in #46120 that only one IClaimsTransformation-instance can be used per application/request. The DI-Container supports the registration and the resolving of a set of interface-registrations, so this would fix the issue itself.
This PR could have potential impact on shiped code, also because of some breaking changes, but the current implementation was the idea i came up with to fix this issue with as less breaking changes as needed. Alternative suggestions are very welcome.

Fixes #46120

[dotnet-policy-service]

Thanks for your PR, @@FAMEEXE. Someone from the team will get assigned to your PR shortly and we'll get it reviewed.

[FAMEEXE]

@dotnet-policy-service agree