Add VeeamONE-Notification-BigPanda script for alerting to BigPanda API

[adamcongdon]

Pull Request Template

By contributing, you agree that your contributions will be licensed under the projects original open source license.

Description

This script is meant to allow Veeam ONE to integrate with the BigPanda platform by forwarding alerts from VeeamONE into the BigPanda API.

Fixes # (issue)

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration.

Testing was performed live with a partner to ensure the alerts are received properly.

Checklist (check all applicable):

• [ x] My code follows the style guidelines of this project
• [ x] I have performed a self-review of my own code
• [ x] I have commented my code, particularly in hard to understand areas
• [ x] I have made corresponding changes to the documentation
• [ x] My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[carceneaux]

Thanks for contributing! The code looks great!

Please add a README.md page to let folks know more about what the automation does and any other relevant information. An example can be found here: https://github.com/VeeamHub/powershell/blob/master/BR-UpgradeV12.1/README.md