[FEATURE] Add Windows Support

[bbarani]

Coming from opensearch-project/opensearch-plugins#95, add Windows support.

• Passing CI on Windows
• Documentation

[macohen]

Build failed on Windows. Added the following to the workflow, but it still failed.

- name: Check LongPathsEnabled
  if: ${{ matrix.os == 'windows-latest' }}
  run: |
     (Get-ItemProperty "HKLM:System\CurrentControlSet\Control\FileSystem").LongPathsEnabled

@peterzhuamazon, any ideas?

[macohen]

One more question, this is an experimental feature in 2.4. Given that, must it work on Windows?

[bbarani]

@macohen expectation is that any plugin on-boarded to 2.4.0 release should have working Windows CI on their repo to support that distribution going forward.

[dblock]

@macohen Are integration/cypress tests running on Windows, and/or are there any coverage differences between Linux and Windows tests? If yes, please reopen this issue until that gap is covered.

[msfroh]

Looks like the integration tests are only running on Ubuntu for now: https://github.com/opensearch-project/opensearch-dashboards-functional-test/blob/main/.github/workflows/search-relevance-release-e2e-workflow.yml#L9

[msfroh]

(All of the other e2e testing workflows in opensearch-dashboards-functional-test seem to use ubuntu-latest as well, though.)

[macohen]

builds pass CI for windows. we've been entirely focused on integ tests at this point. @bbarani What documentation are you looking for on this? Are there any examples?

[macohen]

Windows CI is passing. Closing issue.