Add an option for case insensitive endpoint names. (suge

[awright18]

Describe the suggested improvement

Is your improvement related to a problem? Please describe.

As noted in the documentation when BridgeEndpoint configuration names don't match actual EndpointConfiguration names the bridge throws an exception because it can't find the endpoint.

There seem to be common scenarios (MSMQ mentioned in the previous issue) where the casing is for some reason different than what's configured at the endpoint.

A suggestion was made stating that it may be possible to configure case-insensitivity on BridgeEndpoints. This issue is formalizing that suggestion.

Describe the suggested solution

Add an option when to [BridgeEndpoint](https://github.com/Particular/NServiceBus.MessagingBridge/blob/master/src/NServiceBus.MessagingBridge/Configuration/BridgeEndpoint.cs) to AllowCaseInsensitveEndpointNameMatching

Describe alternatives you've considered

Alternately investigate why this issue seems to happen with some MSMQ endpoints and open an issue if there is a bug.

Additional Context

Sender application uses MSMQ transport, NSB version 4.7.12 with .net framework 4.6.

The receiver service in this scenario uses RabbitMQ transport, NSB version 8.0.5 with .Net 6.

The NSB Messaging Bridge uses .net framework 4.8 (to accommodate MSMQ) and the following packages and versions:

NSB version 8.0.5

NSB.MessagingBridge version 2.1.0

NServiceBus.RabbitMQ version 8.0.3

NServiceBus.Transport.Msmq version 2.0.1