Fix design errors refs #15883
Add World Wide library integration design refs #15884
Modify RF02. Flat 3D view will not copy projection of 2D view becouse it already has its own projection refs #15854
Remove View3DModel from class model. Move View3DModel methods to View3DPanel. refs #15883
Add technical design. Modify class diagram and refresh view3D sequence diagram refs #15883
Add class diagram and sequence diagrams of plugin refs #15883
Reorganize folders