add configurable vm prefix

[jasonwbarnett]

Description

This allows you to customize the default vm prefix (i.e. tk-) so that you can alter it to whatever you please.

Issues Resolved

N/A

Type of Change

_feat_: which represents a new feature, and correlates to a SemVer minor.

Check List

• [x] New functionality includes tests
• [x] All tests pass
• [x] Commit message includes a Conventional Commit Message

[tas50]

Thanks @jasonwbarnett