MutablePropertyValues class

Mutable implementation of PropertyValues interface.

This class provides a mutable collection of PropertyValue objects that can be modified after creation. It's the standard implementation used by pod definitions to store and manage property injection configuration.

Key features:

• Add, remove, and modify property values
• Merge with other PropertyValues instances
• Convert to/from various formats
• Support for property value validation
• Thread-safe operations when needed
• Efficient lookup and iteration

Example usage:

final propertyValues = MutablePropertyValues();

// Add properties
propertyValues.add(PropertyValue('host', 'localhost'));
propertyValues.add(PropertyValue('port', 8080));
propertyValues.add(PropertyValue('timeout', 30));

// Modify existing property
propertyValues.addPropertyValue(PropertyValue('port', 9090));

// Remove property
propertyValues.removePropertyValue('timeout');

// Check for property
if (propertyValues.contains('host')) {
  final hostValue = propertyValues.getPropertyValue('host');
}