Add pull request template

Signed-off-by: kerthcet <[email protected]>

Author: kerthcet

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,21 @@
+#### What this PR does / why we need it
+
+#### Which issue(s) this PR fixes
+<!--
+*Automatically closes linked issue when PR is merged.
+Usage: `Fixes #<issue number>`, or `Fixes (paste link of issue)`.
+_If PR is about `failing-tests or flakes`, please post the related issues/tests in a comment and do not use `Fixes`_*
+-->
+Fixes #
+
+#### Special notes for your reviewer
+
+#### Does this PR introduce a user-facing change?
+<!--
+If no, just write "NONE" in the release-note block below.
+If yes, a release note is required:
+Enter your extended release note in the block below. If the PR requires additional action from users switching to the new release, include the string "action required".
+-->
+```release-note
+
+```