Release 6.0.0

* Thu Aug 13 2020 Trevor Vaughan <tvaughan@onyxpoint.com> - 6.0.0
- Allow users to set the SIMP_ENVIRONMENT environment variable to change the
  initial environment from 'production' to a custom value
- Fixed an issue where --dry-run would prompt the user to apply instead of
  simply skipping to the (skipped) action items and then writing the
  ~/.simp/simp_conf.yaml file
- Ensure that `simp config` uses the `simp::classes` parameter instead
  of `classes` by default
- Accept both `simp::classes` and `classes` as valid existing configurations

* Fri Jan 03 2020 Liz Nemsick <lnemsick.simp@gmail.com> - 6.0.0
- Added simp kv command family to allow users to manage and inspect
  entries in a simpkv key/value store
- simp passgen changes
  - Split into sub-commands for ease of use:
    - 'simp passgen envs': List environments that may have 'simplib::passgen'
      passwords
    - 'simp passgen list': List names of 'simplib::passgen' passwords
    - 'simp passgen remove': Remove 'simplib::passgen' passwords
    - 'simp passgen set': Set 'simplib::passgen' passwords
    - 'simp passgen show':  Show 'simplib::passgen' passwords and other
      stored attributes
  - Updated to work with simpkv-enabled simplib::passgen.  Automatically
    detects whether simplib::passgen is operating in legacy mode or
    simpkv mode in the specified environment, and then executes password
    operations using the appropriate mechanism for that mode.
  - When setting passwords, disabled libpwquality/cracklib validation of
    user-entered passwords, by default, because not all passwords managed
    by simplib::passgen are user passwords.  This validation can be
    re-enabled with the '--validate' option of the 'simp passgen set' command.
  - Added the following command line options when creating passwords
    - '--[no-]auto-gen': Whether to auto-generate new passwords.
    - '--complexity': Password complexity to use when a password is
      auto-generated. Corresponds to the complexity option of simplib::passgen.
    - '--[no-]complex-only': Whether to only use only complex characters
      when a password is auto-generated. Corresponds to the complex_only
      option of simplib::passgen.
      key/value store.
    - '--[no-]validate': Enabled validation of new passwords with
      libpwquality/cracklib.
    - '--length': Password length to use when a password is auto-generated.
  - Added '--[no-]details' option when showing password information.  When
    enabled, all available password information is displayed, not just the
    current and previous password values.
- simp config changes
  - Removed deprecated '--non-interactive' option.  Use '--force-defaults'
    instead.

* Fri Aug 30 2019 Trevor Vaughan <tvaughan@onyxpoint.com> - 6.0.0
- Fix Puppet Enterprise support