Add pull request template

1. Add a pull request template with standard checklist

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

.github/pull_request_template.md

@@ -0,0 +1,18 @@
+## Pull Request Description
+
+Please replace this with a detailed description and motivation of the changes. 
+You can tick the checkboxes below with an 'x' between square brackets or just check them after publishing the PR. 
+If this PR contains a breaking change, list dependent PRs and try to push all related PRs at the same time.
+
+## PR Type
+- [ ] Bug fix (change that fixes an issue)
+- [ ] New feature (change that adds new functionality)
+- [ ] Breaking change (has dependencies in other repos or will cause CI to fail)
+
+## PR Checklist
+- [ ] I have performed a self-review of the changes
+- [ ] I have commented my code, at least hard-to-understand parts
+- [ ] I have build all projects affected by the changes in this PR
+- [ ] I have tested in hardware affected projects, at the relevant boards
+- [ ] I have signed off all commits from this PR
+- [ ] I have updated the documentation by running CI/gen_doc/docs/gen_sysobj_doc.m script locally, if applies.