v0.12.0

This release has two potentially breaking changes:

1. Elixir 1.11 is now the minimum supported Elixir version.
2. VintageNet.PropertyTable has been extracted to its own library and is now
   just PropertyTable. Most users did not use VintageNet.PropertyTable
   directly, but if you did, you'll need to update the references.

• Changed
  • Extract VintageNet.PropertyTable to its own library. Note that many
    improvements were made to PropertyTable including renaming functions for
    consistency and changing the events. Code was added to VintageNet to hide
    these changes for now. Longer term, we'll be making things more consistent,
    but the hope is that the PropertyTable changes are transparent to VintageNet
    users in this release.
  • Support specifying absolute paths to network configuration commands. While
    this is not preferred, it's useful in some scenarios.
  • Redact more kinds of secrets in VintageNet.info