Added AzureRmWebAppDeploymentV5 to support OneDeploy for Linux App Service

[v-snalawade]

Task name: AzureRmWebAppDeploymentV5

Description:

1. Added AzureRmWebAppDeploymentV5 to support OneDeploy for Linux App Service.
2. OneDeploy supports both clean (default) and incremental deployment options. For incremental deployment option, user needs to uncheck the clean deployment checkbox (i.e. set task parameter CleanDeploymentFlag to false)
3. We can fallback to ZipDeploy by specifying DeploymentTypeLinux parameter as zipDeploy.
4. Both onedeploy and zipDeploy for LinuxAppService use the newer version of common package (Added checksum header to kudu deployment request conditionally azure-pipelines-tasks-common-packages#411) to compute checksum for the attached zip or jar file.

PR #20736 shows changes in V5 w.r.t. V4.

Documentation changes required: initiated the process

Added unit tests: Y

Attached related issue: N - Related issue is in ADO repository and has been shared with the reviewers

Checklist:

• Task version was bumped - please check instruction how to do it
• Checked that applied changes work as expected