Create configurator tool

As outlined in the deployment section of !26 (merged), we want to use a dedicated, non-interactive configurator tool, which allows us to (re)configure the NetHSM based on a declarative configuration file (without any passphrases).

Passphrases for relevant actions (e.g. R-Administrator or N-Administrator), backup and unlock passphrases are expected to be provided as shares of a shared secret (using Shamir's Secret Sharing) after initial deployment of the OS.