Code improvements (#745)

Author: gvreddy04

BlazorBootstrap.Demo.RCL/Components/Pages/Charts/BarCharts/BarChart_Demo_01_Examples.razor

@@ -120,7 +120,7 @@
 
     private BarChartDataset GetRandomBarChartDataset()
     {
-        var c = ColorBuilder.CategoricalTwelveColors[datasetsCount].ToColor();
+        var c = ColorUtility.CategoricalTwelveColors[datasetsCount].ToColor();
 
         datasetsCount += 1;
 

BlazorBootstrap.Demo.RCL/Components/Pages/Charts/BarCharts/BarChart_Demo_02_Horizontal_BarChart.razor

@@ -13,8 +13,8 @@
         var dataset1 = new BarChartDataset()
             {
                 Data = new List<double> { 55000, 15000, 18000, 21000 },
-                BackgroundColor = new List<string> { ColorBuilder.CategoricalTwelveColors[0] },
-                BorderColor = new List<string> { ColorBuilder.CategoricalTwelveColors[0] },
+                BackgroundColor = new List<string> { ColorUtility.CategoricalTwelveColors[0] },
+                BorderColor = new List<string> { ColorUtility.CategoricalTwelveColors[0] },
                 BorderWidth = new List<double> { 0 },
             };
         datasets.Add(dataset1);