#12008 Improve display of curves from selected cells in 3D view

* Remove obsolete base class
* Add conversion between one/zero-based IJK
* Move code to RiaTextStringTools
* Add automatic update of grid cell curves when clicking in 3D view
* Fix missing conversion to QString

ApplicationExeCode/Resources/ResInsight.qrc

@@ -298,6 +298,7 @@
         <file>Select.svg</file>
         <file>NavigationProperty.svg</file>
         <file>user-defined-view.svg</file>
+        <file>gear.svg</file>
     </qresource>
     <qresource prefix="/Shader">
         <file>fs_CellFace.glsl</file>