compliance: add org-wide PULL_REQUEST_TEMPLATE.md

[babblebey]

Description

This Pull Request adds a default Pull request Template to be used on all organization-wide on repo without local PR template. Template is demo in current PR Description and Template content below..

## Description
<!-- Please add PR description (don't leave blank) - example: This PR [adds/removes/fixes/replaces] the [feature/bug/etc] -->

## Related Issue
<!-- Please prefix the issue number with Fixes/Resolves - example: Fixes #123 or Resolves #123 or Closes #123 -->

## Screenshots/Screencasts
<!-- Please provide screenshots or video recording that demos the working of your changes (especially if it's a visual change) -->

## Notes to Reviewer
<!-- Please state here if you added a new npm packages, or any extra information that can help reviewer better review you changes -->

Related Issue

NA

Screenshots/Screencasts

NA

Notes to Reviewer

NA