A Builder for GridElements.
Builder
GridElement
Methods - API calls which can only be made on an object returned by a constructor
cp.ui.GridElement.Builder:withColumnsOf(columnInit) -> cp.ui.GridElement.Builder
Column
cp.ui.GridElement.Builder:withHeaderOf(headerInit) -> cp.ui.GridElement.Builder
Header
cp.ui.GridElement.Builder:withRowsOf(rowInit) -> cp.ui.GridElement.Builder
Row