Add pull_request_template.md

[R055A]

Description

A pull request (PR) template added to the ./github directory so contributors can automatically see the expected contents for the project in a new PR body.

The PR template is based on these linked examples provided by @axolo-co but modified to better suit this project.

Template

This is what is seen when editing a new PR:

<!-- Is there a relevant and understandable title succinctly summarizing the changes? -->

# Description

<!--- Give a description of the changes here in more detail -->
<!--- Include screenshots if necessary -->

## Related Issue

<!--- This project only accepts pull requests related to already existing open issues -->
<!--- Please link to the open issue here: -->

Solves #<!--issue-->

<!--Don't forget to move the related issue to the 'Review in progress' column.-->

## Type of change

<!--Please delete options that are not relevant.-->

- [ ] New feature (enhancement)
- [ ] Bug fix
- [ ] Refactor
- [ ] Breaking change
- [ ] Documentation

<!--Don't forget to add a label to the pull request, if relevant.-->

## How Has This Been Tested?

<!--- Please describe in detail how the changes have been tested. -->
<!--- Include details of the testing environment, the tests run, and the results. -->

<!--Please delete options that are not relevant.-->

- [ ] Automated testing
- [ ] Manual testing

# Checklist:

<!--Please delete options that are not relevant.-->

- [ ] Does a similar (open or closed) pull request not already exist?
- [ ] Is the pull request _head_ repository a fork repository?
- [ ] Is the pull request _compare_ branch a development branch?
- [ ] Is the code documented, particularly in hard-to-understand areas?
- [ ] Does the code build without new warnings?
- [ ] Has testing been performed that proves changes are effective and work?
- [ ] Has a self- and/or peer-review of the code been performed?
- [ ] Have dependent changes been merged and published in downstream modules?
- [ ] Does all new and existing automated testing pass?
- [ ] Is the person responsible for the repository assigned to the pull request?
- [ ] Is the pull request linked to a project?
- [ ] Is the pull request linked to a milestone?

For more information, refer to the [Contributing Guidelines](../blob/contribution-guidelines/.github/CONTRIBUTING.md) document.

<!--Don't forget to notify others of the pull request for a quick review.-->

Related Issue

Solves #8

Type of change

• Documentation

Checklist:

• Does a similar (open or closed) pull request not already exist?
• Is the pull request head repository a fork repository?
• Is the pull request compare branch a development branch?
• Has a self- and/or peer-review of the code been performed?
• Does all new and existing automated testing pass?
• Is the person responsible for the repository assigned to the pull request?
• Is the pull request linked to a project?
• Is the pull request linked to a milestone?

[hiin3d55]

LGTM!

[hiin3d55]

LGTM!