Add configuration class for chart.js Annotations plugin.

Author: Mischa Spelt

blazorbootstrap/Enums/PointStyle.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BlazorBootstrap;
+
+public enum PointStyle
+{
+  Circle,
+  Cross,
+  CrossRot,
+  Dash,
+  Line,
+  Rect,
+  RectRounded,
+  RectRot,
+  Star,
+  Triangle
+}