[Feature] - Add Issue and PR Template

[adithyaakrishna]

Description: This Repo doesn't have an issue or a PR template

Expected Behavior: The Repository should have a Issue as well as a PR template

For Reference:

• PR Template: https://github.com/layer5io/layer5/blob/master/.github/PULL_REQUEST_TEMPLATE.md
• Issue Template: https://github.com/layer5io/layer5/tree/master/.github/ISSUE_TEMPLATE
• Config File: https://github.com/layer5io/layer5/blob/master/.github/config.yml

[adithyaakrishna]

@devansh42 @amino19 Would any of you take up this issue? 👀

[aminoxix]

@adithyaakrishna : Thanks for highlighting, I will do it! :slightly_smiling_face: