MswRollUp: Principal fixes to the MSW algorithms

Add point contributions even when it is undefined to store the segment below id, which is needed for the traversal.
The undefined positions comes from bottom end segments without connections.
Also cleaned up the the static well calculation
This is an intermediate commit and does not compile
p4#: 22226

ApplicationCode/ModelVisualization/RivWellPipesPartMgr.cpp

@@ -206,6 +206,7 @@ void RivWellPipesPartMgr::calculateWellPipeCenterline(  std::vector< std::vector
             if (resBranches[i].m_branchResultPoints.size() != 0)
             {
                 hasResultCells = true;
+                break;
             }
         }
     }