Allow to have a section view of the files.

[Mannshoch]

Describe the solution you'd like

I need a kind of a cut button that allow to made a Section view through the body.

• [ ] Add Cuting XY, YZ, ZX
• [ ] add turning the cut by selecting an Edge or an Axis and enter an angle or drag the section view
• [ ] allow Cutting by selecting a Plane of the Body

Describe alternatives you've considered

• Working with https://github.com/kovacsv/Online3DViewer (also no section view)
• Working with http://www.meshlabjs.net (has no STP support, also missing a section view)
• Working with https://apps.nextcloud.com/apps/cadviewer (has no 3D support)
• Working with 3D-PDF (not all user have Adobe Reader)
• Working with https://bobcob7.github.io/wasm-stl-viewer/ (has no controls, only work with STL)
• Working with FreeCAD (no Browser support, No simplyfied GUI for viewing)
• Working with https://www.edrawingsviewer.com/ (Closed source, no Browser support)
• Working with http://www.meshmixer.com/ (Closed source, no Browser support)
• etc..