Mesh viewer refactoring - using pointer property

Created by: Durman

Addressed problem description

#3371 (closed) #3390 (closed)

The node should work much faster. More readable code. Collection selector will be available. No name intersection problems.

TODO

• Selection objects and create material operators
• Picking names refactoring ?
• Apply matrixes (two variants to object/mesh ?)
• Merge mesh
• Smooth mesh
• Wireframe mesh
• Apply material indexes
• Show / hide data by node tree request
• Topology changes test option

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• Code changes complete.
• Code documentation complete.
• Documentation for users complete.
• Manual testing done.
• Ready for merge.