feat(Chart): support custom data source label formmater parameter (#574)

* chore: 依赖 utility 脚本

* refactor: 增加 formatter 自定义方法

* chore: bump version 9.0.1

Author: ArgoZhang

src/components/BootstrapBlazor.Chart/BootstrapBlazor.Chart.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Razor">
 
   <PropertyGroup>
-    <Version>9.0.0</Version>
+    <Version>9.0.1</Version>
   </PropertyGroup>
 
   <PropertyGroup>

src/components/BootstrapBlazor.Chart/Components/Chart/Chart.razor.js

@@ -1,16 +1,11 @@
 import '../../js/chart.umd.js'
 import '../../js/chartjs-plugin-datalabels.js'
+import { deepMerge } from '../../../BootstrapBlazor/modules/utility.js'
 import Data from '../../../BootstrapBlazor/modules/data.js'
 import EventHandler from "../../../BootstrapBlazor/modules/event-handler.js"
 
 Chart.register(ChartDataLabels);
 
-// WIP: wait net9 release
-// later will move into bootstrapblazor for global init make sure window.BootstrapBlazor is defined
-if (window.BootstrapBlazor === void 0) {
-    window.BootstrapBlazor = {};
-}
-
 if (window.BootstrapBlazor.Chart === void 0) {
     const elementMap = new Map();
     window.BootstrapBlazor.Chart = new class {
@@ -99,20 +94,6 @@ const genericOptions = {
     radius: 0
 }
 
-const deepMerge = (obj1, obj2) => {
-    for (let key in obj2) {
-        if (obj2.hasOwnProperty(key)) {
-            if (obj2[key] instanceof Object && obj1[key] instanceof Object) {
-                obj1[key] = deepMerge(obj1[key], obj2[key]);
-            }
-            else {
-                obj1[key] = obj2[key];
-            }
-        }
-    }
-    return obj1;
-}
-
 const getChartOption = function (option) {
     const appendData = option.appendData;
     delete option.appendData;
@@ -388,7 +369,7 @@ const getChartOption = function (option) {
                     datalabels: {
                         anchor: option.options.anchor,
                         align: option.options.align,
-                        formatter: Math.round,
+                        formatter: option.options.formatter,
                         display: option.options.showDataLabel,
                         color: option.options.chartDataLabelColor,
                         font: {