Adding a new polygon selection in 3D view

Change-Id: I07c2bb7559183951243e6d6314393f52257ab65f
Polygon selection on points is working

Change-Id: Ib55f18801fc81681dc327da4f5a435fcb3733b20
Added polygon surface-cell-selection

Change-Id: Iec889c14432c5305d215ac9de4301d542e49d4df
Added tests for polygon selection

Change-Id: Ib8c9879259b5e965312617b9cfd7e474cbc05aa6
Merge topic '13815_polygon_selection' into next

3a4d2d4 Added tests for polygon selection
d8f74a2 Added polygon surface-cell-selection
7b57915 Polygon selection on points is working
2433560 Adding a new polygon selection in 3D view