feat: Add Azure EventHubs module

[rafek1241]

First version of PR was made by @WakaToa at #1183

What does this PR do?

Add support for Azure EventHubs emulator.

Info

You need to provide an Azurite (emulator) instance/endpoint to start the EventHub emulator. This can be done using the EventHubsConfiguration.

You need to specify the following configuration file when starting the emulator.

{
  "UserConfig": {
    "NamespaceConfig": [
      {
        "Type": "EventHub",
        "Name": "emulatorNs1",
        "Entities": [
          {
            "Name": "eh1",
            "PartitionCount": "2",
            "ConsumerGroups": [
              {
                "Name": "cg1"
              }
            ]
          }
        ]
      }
    ], 
    "LoggingConfig": {
      "Type": "File"
    }
  }
}

It will be dynamically mapped and i have built a floating builder so that the user can set the configuration as easily as possible.
The namespace "emulatorNs1" is mandatory and it is the only one currently supported by the emulator.

var configurationBuilder = ConfigurationBuilder
    .Create()
    .WithEventHub(EventHubName, "2", new[] { EventHubConsumerGroupName });

var builder = new EventHubsBuilder()
        .WithAcceptLicenseAgreement(true)
        .WithConfigurationBuilder(ConfigurationBuilder);

_eventHubsContainer = builder.Build();

await _eventHubsContainer.StartAsync();

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[rafek1241]

TODO:

• create test case for existing azurite externally added WithAzurite(...).
• Fix issues in tests