@Nullable
	default <V> V getPropertyValueOrNull(String key) {
		Property<V> property = getProperty(key);
		if (property == null)
			return null;
		return property.value();
	}
@param key
		Property key.
@param <V>
		Property value type.

@return Value of property, or {@code null} if the property is not set.
recaf-core/src/main/java/software/coley/recaf/info/properties/PropertyContainer.java