Maintaining General Health for Clients

[VachaShah]

Below are some of the things that can be done to maintain the general health of the clients.

• Add a DEVELOPER_GUIDE to make it easy for the community to get started with the client. Refer DEVELOPER_GUIDE.md
• Add a TESTING_GUIDE for client development.
• Follow branching standards described in https://github.com/opensearch-project/.github/blob/main/RELEASING.md#branching.
• Add auto backport functionality to maintain development across multiple branches easily. Refer [BACKPORT.md] Add auto backport functionality to backport PRs for releases #14
• Add a compatibility matrix for the client. Refer COMPATIBILITY.md - Test and publish compatibility matrix with various OpenSearch versions #8
• Support tests running across compatible versions of OpenSearch for the current client version. - Test and publish compatibility matrix with various OpenSearch versions #8
• Add ability to test against developing unreleased OpenSearch to make required changes to the client. This will help in developing and maintaining clients according to changes to OpenSearch.
• Add broken link checker. Refer https://github.com/opensearch-project/opensearch-plugins/blob/main/.github/workflows/links.yml
• Add CVE scanning for the client.
• Add Dependabot auto upgrade to keep the dependencies up-to-date.
• Add standard issue/feature templates from .github.

[wbeckler]

These all look done to me. Any objections if we close?