add bar graph, make changes to customgrid and custombars to match new structure

mock/charts/mock-data.ts

@@ -0,0 +1,41 @@
+export const graph_data_one_measures = {
+  xValues: ['x_1', 'x_2', 'x_3', 'x_4', 'x_5'],
+  yValues: [
+    {
+      key: 'measure_1',
+      values: [100, 140, 90, 80, 40]
+    }
+  ]
+};
+export const graph_data_two_measures = {
+  xValues: ['x_1', 'x_2', 'x_3', 'x_4', 'x_5'],
+  yValues: [
+    {
+      key: 'measure_1',
+      values: [100, 140, 90, 80, 40]
+    },
+    {
+      key: 'measure_2',
+      values: [78, 82, 73, 56, 61],
+      formatLabel: (value: number) => `${value}%`
+    }
+  ]
+};
+export const graph_data_three_measures = {
+  xValues: ['x_1', 'x_2', 'x_3', 'x_4', 'x_5'],
+  yValues: [
+    {
+      key: 'measure_1',
+      values: [100, 140, 90, 80, 40]
+    },
+    {
+      key: 'measure_2',
+      values: [78, 82, 73, 56, 61],
+      formatLabel: (value: number) => `${value}%`
+    },
+    {
+      key: 'measure_3',
+      values: [77, 32, 45, 65, 50]
+    }
+  ]
+};