Draft: build: add helper scripts

What does this MR do?

Add helper scripts and update changelog script to be POSIX compliant

Usage: ./helper.sh <script>

public facing scripts are in the scripts folder

There are a few improvements over the current make tasks: remove useless use of cat, consistent use of -v, race is -failfast, ability to run the scripts on golang-alpine images

Closes #104

TODO

• I added the Changelog (e.g. Changelog: feature) trailer to the commits that need to be included in the changelog
• I added unit tests or they are not required
• I added acceptance tests or they are not required
• I added documentation (or it's not required)
• I followed code review guidelines
• I followed Go Style guidelines