Add ansible virtual machine provisioner

[sdake]

• tidy formatting warnings and errors in yaml
• enable override of image output location via hcl variable
• increase ssh timeout to 30 minutes for ansible install in the vm
• add an ansible provisioner
• install cuda 1.18
• install cuda 1.22
• install docker ce
• add config modprobe.d config for nvidia dirver
• install grub config that enables kvm via /etc/default/grub.d
• require ansible ssh provisioner for packer

[sdake]

recheck

[sdake]

@MostAwesomeDude @rstarmer this is ready for review. I know there are many pushes - recommend looking holistically at the PR.