Workflow Consistency / Simplification Updates in All Workflows - Part1

[peterzhuamazon]

This PR is to improve workflow consistency / simplification updates in all workflows.

• Unifying naming conventions of workflow files here
• Unifying workflow job names with RPM one for references
• Simplify workflow integTests by utilizing the setup_runner_service.sh scripts
• Add a setup_runner_service_windows powershell script for windows env
  (windows GitHub runner default shell is set to powershell: https://github.blog/changelog/2019-10-17-github-actions-default-shell-on-windows-runners-is-changing-to-powershell/)

Test Cases:

• RPM: https://github.com/opendistro-for-elasticsearch/opendistro-build/actions/runs/187850756
• WINDOWS: https://github.com/opendistro-for-elasticsearch/opendistro-build/actions/runs/187880741

This PR consumes the changes from @weicongs-amazon 's windows ad kibana plugin integration test: #332

#312
https://github.com/opendistro-for-elasticsearch/opendistro-infra/issues/216

Another PR for Part2 of other distros will be created later.

Thanks.

[gaiksaya]

Also can you add the introduction at the start to tell what the script does? for both runners script. We should do that for all of them

[peterzhuamazon]

Also can you add the introduction at the start to tell what the script does? for both runners script. We should do that for all of them

@gaiksaya Will add another PR later for scripts documentation.