Develop - 0.13.0

[arimger]

Added:

• Warning information if currently serialized type in TypeField-based drawers (SerializedType, [ReferencerPicker]) is not available in the filtered types collection
• Context menu operations for [SerializeReference] properties (Copy, Paste, Duplicate), all operations are based on a deep copy of the source reference
• Basic support for generic references while using [SerializeReference] & [ReferencePicker], can be utilized in Unity 2023.2.x+
• More unit tests (PropertyUtility, filtering generic types)
• Validation of assigned assets in the SerializedDirectory class

Changed:

• Fix duplicated initialization process forced by the OnValidate call
• Better support for generic types for the SerializedType & associated drawer
• Hierarchy: For now 'Script' label displays maximum 5 scripts
• Improved types label generation for TypeField-based drawers (SerializedType, [ReferencerPicker])