v2.0.0 - Major Refactor

Major Refactor of this Plugin to allow future maintainability. Includes breaking changes.

What's Changed

• Enable GitHub Actions by @martialblog in #24
• Major Refactor to allow future maintainability by @martialblog in #26
• Add unittests
• Optimize code readability
• Improved error handling and some bug fixes
• Normalize perfdata output text
• Normalize output text
• Refactor to support warning/critical thresholds
• Refactor to support all job states
• Change return status output formatting to include []

Deprecations and Breaking Changes:

• Remove support for MySQL since Bareos also dropped support
• Change -d --database flag from meaning database type to database name
• Change --user short to -U to avoid confusion with --unit flag

Full Changelog: v1.1.0...v2.0.0