Changelog for guardian-0.5.0.0

Changelog for guardian

Now guaridan can talk with external program to get a dependency graph!
- Currently, it supports Dot language as the only input format.
- This enables you to use guardian to maintain:
  - non-Haskell projects
  - the dependency between arbitrary entities not limited to packages, e.g. modules.
- See ./dependency-domains-graphmod.yaml for the example usage in conjunction with graphmod to maintain module dependecy boundaries.
Implements wildcards section: if wildcards: true is specified, you can use wildcard * in your domain entity definition.
- You cannot use wildcards in exceptional rule targets; this is intentional.
Supports conditional builds: when you build guardian manually, you can disable unnecessary adapters. Just turn off cabal and/or stack flags to disable corresponding adapters.
Rework on GitHub Actions.
Bumps up Cabal and Stack version. This should address the error when CABAL_DIR is not set to ~/.cabal.