find Cells With Minimum Elements
fun findCellsWithMinimumElements(cells: List<RectangularGridSpatialModel2D.RectangularCell2D>): List<RectangularGridSpatialModel2D.RectangularCell2D>
Across all the cells, which cells have the minimum number of elements in cells
Return
a list of cells that have the minimum number of elements
Parameters
cells
the cells to search, must not be empty