Improved QtnProperties about qtnproperty HOT 1 CLOSED

Hello. Sure you can link my fork.
Thank you for the original work by the way, it helps me a lot!

List of my features :

• Multi-properties with QtnMultipleProperty. It is useful when you want to show properties of multiple objects at once. When values of objects's properties differ it shows grayed (Multiple properties). When you set a new property value, it will be changed in every dependent object. Multi-property set can be created with qtnCreateQObjectMultiPropertySet function defined in QObjectPropertySet.h or from custom property sets in a loop with qtnPropertiesToMultiSet function where target argument is a multi-property set, and source argument is a source property set you want to join.
• QVariant properties with QtnCustomPropertyWidget. You can edit QVariant as property set / add/remove subproperties in QVariantMap or QVariantList, copy/paste variant properties.
• Integer 64 properties QtnPropertyInt64 QtnPropertyUInt64
• Floating point variants of QPoint, QSize, QRect properties
• Overriding QtnPropertyDelegateFactory for QtnPropertySet
• Improvements to sync objects values and property editors
• Translations EN_RU

from qtnproperty.