Prevent VM creation if using VirtualBox + root/sudo

[tomjn]

In theory this prevents the creation of the VM by exiting early if the user is root. It needs further testing however

Checks

• [ ] I've updated the changelog.
• [ ] I've tested this PR
• [x] This PR is for the develop branch not the stable branch.
• [ ] This PR is complete and ready for review.

[update-docs[bot]]

Thanks for opening this pull request! Make sure CHANGELOG.md gets updated with this change, additionally any docs that need updated can be found at https://github.com/Varying-Vagrant-Vagrants/varyingvagrantvagrants.org

[Mte90]

I cannot test it on linux because I did't gave sudo permission to vagrant at all.

[tomjn]

sudo vagrant up in a fresh VVV checkout of this branch should be all that's needed, or running the vagrant command as root. This PR doesn't influence the guest VM

[Mte90]

I cannot test it because my machine block sudo on other commands.

[evertiro]

I cannot test it because my machine block sudo on other commands.

I'm really curious about this... what environment actively blocks sudo by default? And if it's not a default, why would you intentionally put yourself in that position?