Holds the description data of a UXML attribute.
This is used by the code generator when a control is using UxmlElementAttribute and UxmlAttributeAttribute.
| fieldName | The field name of the UXML attribute |
| obsoleteNames | The obsolete names of the UXML attribute. |
| typeReference | The type reference of the UXML attribute. |
| uxmlName | The uxml name of the UXML attribute. |
| UxmlAttributeNames | Creates a new instance of UxmlAttributeNames. |