Release of Device Update for IoT Hub SDK for Java

[dpokluda]

This is PR with auto-generated SDK for Device Update for IoT Hub. I used the following autorest command:

autorest --java `
--use=E:\GitHub\autorest.java `
--input-file=E:\GitHub\azure-rest-api-specs\specification\deviceupdate\data-plane\Microsoft.DeviceUpdate\preview\2020-09-01\deviceupdate.json `
--output-folder=E:\GitHub\azure-sdk-for-java\sdk\deviceupdate\azure-iot-deviceupdate `
--namespace=com.azure.iot.deviceupdate `
--sync-methods=all --generate-client-interfaces=false --license-header=MICROSOFT_MIT_SMALL_NO_CODEGEN

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[srnagar]

There are few things that are missing:

• AutoRest configuration is missing - see sample
• module-info.java is missing - see sample
• Properties file is missing - see sample
• version_client.txt should be updated to include this library
• This library's dependency should be added to jacoco-test-coverage pom
• sdk/deviceupdate directory should be added to root pom

[srnagar]

/azp run prepare-pipelines

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).