add quantity celltype

web/maintain/main_col_lib/js/main_tree_col.js

@@ -122,6 +122,9 @@ let MainTreeCol = {
         feeRate: function () {
             return feeRateObject.getFeeRateEditCellType();
         },
+        quantity:function () {
+
+        },
         calcBase: function () {
             return calcBaseView.getCalcBaseCellType();
         },