12.0.0

• Updated minimum PHP version to 8.0
• Updated type hints and return types
• Renamed Attributes namespace to Settings
• Renamed toArray method to get
• Renamed conditional logic method if to where
• Renamed location method if to where
• Removed field and option helper functions
• Removed setParentKey methods
• Removed conditional logic comparison methods
• Removed configuration class
• Removed field group class