Implement state machine for handling NetHSM backend in the configurator tool

• check if we have administrative credentials (backup passphrase, unlock passphrase and all Administrators' passphrases),
  • for Virtual Test System: ad-hoc create all passphrases (also missing ones) in /var/lib so it's persistent for updates
  • for Hardware System: #120
• if the NetHSM is not provisioned:
  • (if using SSS then create NetHSM administrative credentials, split them into shares and wait until they're downloaded)
  • provision NetHSM
  • create users
  • create keys
  • configure NetHSM: logging, network, etc.
• if NetHSM is provisioned:
  • check if there's discrepancy to the hermetic parallel config file
    • request or create administrative passphrases for scope (e.g. namespace)
    • optionally create N-Administrators (create new shared-secret that needs to be downloaded when using SSS)
    • create missing users
    • create any missing keys