Develop - 0.14.2

[arimger]

Added:

• AddConfirmationBox property to the [ReferencePicker]; allows to display an intermediate confirmation window before assigning a new reference

Changed:

• Fix [FormattedNumber] behaviour while multi-editing different values
• [LabelByChild] now displays ToString() value for UnityEngine.Object references
• Fix ReorderableLists indentation level for nested objects
• Fix various smaller issues related to [SerializeReference]-based properties while being in the multi-editing mode
• Rename 'Copy Serialize Reference' to 'Copy Serialized References', from now this operation also works on arrays and lists
• Rename 'Paste Serialize Reference' to 'Paste Serialized References', from now this operation also works on arrays and lists