Add Azure eventhub support

[bhapas]

Add support for Azure eventhub output.

For Credentials : https://github.com/Azure/azure-sdk-for-go/blob/6b6f76ebe0d2334c83e8b6f89af4fe9d0b1ce631/sdk/azidentity/README.md?plain=1#L156-L187

Test Execution

workspace/stream - (azure-eventhub-output) >
 ./stream log main.go 
-p=azureeventhub 
--azure-event-hub-connection-string="Endpoint=sb://test-eventhub-stream-seis.servicebus.windows.net/;SharedAccessKeyName=RootManageSharedAccessKey;SharedAccessKey=SharedAccessKey"

{"level":"debug","ts":"2023-08-28T10:18:02.777+0200","caller":"output/util.go:28","msg":"Connecting...","address":""}
{"level":"info","ts":"2023-08-28T10:18:02.777+0200","caller":"output/util.go:41","msg":"Connected","address":""}
{"level":"debug","ts":"2023-08-28T10:18:02.777+0200","caller":"command/log.go:81","msg":"Sending log line.","address":"","log":"main.go","line_number":1}
{"level":"debug","ts":"2023-08-28T10:18:04.775+0200","caller":"command/log.go:81","msg":"Sending log line.","address":"","log":"main.go","line_number":2}
{"level":"debug","ts":"2023-08-28T10:18:05.101+0200","caller":"command/log.go:81","msg":"Sending log line.","address":"","log":"main.go","line_number":3}
{"level":"debug","ts":"2023-08-28T10:18:05.422+0200","caller":"command/log.go:81","msg":"Sending log line.","address":"","log":"main.go","line_number":4}
{"level":"debug","ts":"2023-08-28T10:18:05.560+0200","caller":"command/log.go:81","msg":"Sending log line.","address":"","log":"main.go","line_number":5}
{"level":"debug","ts":"2023-08-28T10:18:05.699+0200","caller":"command/log.go:81","msg":"Sending log line.","address":"","log":"main.go","line_number":6}
{"level":"debug","ts":"2023-08-28T10:18:05.831+0200","caller":"command/log.go:81","msg":"Sending log line.","address":"","log":"main.go","line_number":7}
{"level":"debug","ts":"2023-08-28T10:18:05.969+0200","caller":"command/log.go:81","msg":"Sending log line.","address":"","log":"main.go","line_number":8}
{"level":"debug","ts":"2023-08-28T10:18:06.108+0200","caller":"command/log.go:81","msg":"Sending log line.","address":"","log":"main.go","line_number":9}
{"level":"debug","ts":"2023-08-28T10:18:06.243+0200","caller":"command/log.go:81","msg":"Sending log line.","address":"","log":"main.go","line_number":10}
{"level":"debug","ts":"2023-08-28T10:18:06.385+0200","caller":"command/log.go:81","msg":"Sending log line.","address":"","log":"main.go","line_number":11}
{"level":"debug","ts":"2023-08-28T10:18:06.547+0200","caller":"command/log.go:81","msg":"Sending log line.","address":"","log":"main.go","line_number":12}
{"level":"debug","ts":"2023-08-28T10:18:06.689+0200","caller":"command/log.go:81","msg":"Sending log line.","address":"","log":"main.go","line_number":13}
{"level":"debug","ts":"2023-08-28T10:18:06.826+0200","caller":"command/log.go:81","msg":"Sending log line.","address":"","log":"main.go","line_number":14}
{"level":"debug","ts":"2023-08-28T10:18:07.028+0200","caller":"command/log.go:81","msg":"Sending log line.","address":"","log":"main.go","line_number":15}
{"level":"debug","ts":"2023-08-28T10:18:07.227+0200","caller":"command/log.go:81","msg":"Sending log line.","address":"","log":"main.go","line_number":16}
{"level":"debug","ts":"2023-08-28T10:18:07.381+0200","caller":"command/log.go:81","msg":"Sending log line.","address":"","log":"main.go","line_number":17}
{"level":"info","ts":"2023-08-28T10:18:07.516+0200","caller":"command/log.go:94","msg":"Log data sent.","address":"","log":"main.go","total_bytes":337,"total_lines":17}
workspace/stream - (azure-eventhub-output) > 

Screenshots

Messages in Azure portal

[elasticmachine]

:green_heart: Build Succeeded

the below badges are clickable and redirect to their specific view in the CI or DOCS

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#### Build stats * Start Time: 2023-10-16T12:12:58.083+0000 * Duration: 6 min 59 sec #### Test stats :test_tube: | Test | Results | | ------------ | :-----------------------------: | | Failed | 0 | | Passed | 22 | | Skipped | 0 | | Total | 22 |

:robot: GitHub comments

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To re-run your PR in the CI, just comment with: - `/test` : Re-trigger the build.

[marc-gr]

It looks nice!

I wonder if we could add some tests for it if possible and to add some docs about how to use it.

[bhapas]

Raised https://github.com/Azure/azure-sdk-for-go/issues/21758 for adding support for emulator in Azurite for Event Hub.