Feature additions - Remote Ability

[xfrankbx]

• Updated distro specific settings from json to pkr.hcl for Packer 1.7.0 newest release
• Created functions.sh file to be included in build.sh
• Moved help and error functions to functions.sh
• Added additional variables checks to build.sh
• Added additional variables to build.conf(s)
  • Allows setting of the following:
  • ProxMox user
  • ProxMox Storage location for VM
  • ProxMox Storage location for ISO
  • ProxMox Network Interface to user
  • ProxMox Network Interface VLAN Tag if there is one
• Added package sudo to alpine
• Removed @edge from alpine qemu-guest-agent, version being installed wasn't starting
• Fix OpenBSD Password Hash generator, I got errors without the encoding of utf-8 in the line
• Updated distro Readme's for spelling error
• Updated OpenBSD install.conf to be a Jinja template for IP's to be filled by values in build.conf

[xfrankbx]

Merged all code to master in my fork and did a PR with that. Closing this out, no longer necessary.