Add Hyperlink component (#147)

* Add HyperLink component, HyperLinkTarget enum, docs, unit test

Author: hishamco

README.md

@@ -22,6 +22,7 @@ There are a significant number of controls in ASP.NET Web Forms, and we will foc
 
   - Editor Controls
 	  - [Button](docs/Button.md)
+		- [HyperLink](docs/HyperLink.md)
 		- [Image](docs/Image.md)
 		- [ImageButton](docs/ImageButton.md)
 		- [Label](docs/Label.md)

docs/HyperLink.md

@@ -0,0 +1,54 @@
+# LinkButton
+
+It may seem strange that we have a HyperLink component when there already is an HTML anchor and Blazor has features that enable C# interactions with that link, but we need to activate other features that were once present in Web Forms.  Original Web Forms documentation is at:  https://docs.microsoft.com/en-us/dotnet/api/system.web.ui.webcontrols.hyperlink?view=netframework-4.8
+
+## Blazor Features Supported
+
+- `NavigationUrl` the URL to link when HyperLink component is clicked
+- `Text` the text content of the HyperLink component
+- `Target` the target window or frame in which to display the Web page content linked to when the HyperLink component is clicked
+
+## WebForms Syntax
+
+```html
+<asp:HyperLink  
+    AccessKey="string"  
+    BackColor="color name|#dddddd"  
+    BorderColor="color name|#dddddd"  
+    BorderStyle="NotSet|None|Dotted|Dashed|Solid|Double|Groove|Ridge|  
+        Inset|Outset"  
+    BorderWidth="size"  
+    CssClass="string"  
+    Enabled="True|False"  
+    EnableTheming="True|False"  
+    EnableViewState="True|False"  
+    Font-Bold="True|False"  
+    Font-Italic="True|False"  
+    Font-Names="string"  
+    Font-Overline="True|False"  
+    Font-Size="string|Smaller|Larger|XX-Small|X-Small|Small|Medium|  
+        Large|X-Large|XX-Large"  
+    Font-Strikeout="True|False"  
+    Font-Underline="True|False"  
+    ForeColor="color name|#dddddd"  
+    Height="size"  
+    ID="string"  
+    ImageUrl="uri"  
+    NavigateUrl="uri"  
+    OnDataBinding="DataBinding event handler"  
+    OnDisposed="Disposed event handler"  
+    OnInit="Init event handler"  
+    OnLoad="Load event handler"  
+    OnPreRender="PreRender event handler"  
+    OnUnload="Unload event handler"  
+    runat="server"  
+    SkinID="string"  
+    Style="string"  
+    TabIndex="integer"  
+    Target="string|_blank|_parent|_search|_self|_top"  
+    Text="string"  
+    ToolTip="string"  
+    Visible="True|False"  
+    Width="size"  
+/>
+```

src/BlazorWebFormsComponents.Test/HyperLink/Format.razor

@@ -0,0 +1,10 @@
+@inherits TestComponentBase
+
+<SnapshotTest Description="Verify HTML format of HyperLink">
+	<TestInput>
+		<HyperLink Text="Go to Bing!!" NavigationUrl="https://www.bing.com" />
+	</TestInput>
+	<ExpectedOutput>
+		<a href="https://www.bing.com" target="">Go to Bing!!</a>
+	</ExpectedOutput>
+</SnapshotTest>

src/BlazorWebFormsComponents/Enums/HyperLinkTarget.cs

@@ -0,0 +1,15 @@
+namespace BlazorWebFormsComponents.Enums
+{
+  public class HyperLinkTarget
+  {
+		public static readonly string Blank = "_blank";
+
+		public static readonly string Parent = "_parent";
+
+		public static readonly string Search = "_search";
+
+		public static readonly string Self = "_self";
+
+		public static readonly string Top = "_top";
+	}
+}

src/BlazorWebFormsComponents/HyperLink.razor

@@ -0,0 +1,10 @@
+@inherits BaseWebFormsComponent
+
+@if (NavigationUrl == null)
+{
+	<a id="@ID">@Text</a>
+}
+else
+{
+	<a id="@ID" target="@Target" href="@NavigationUrl">@Text</a>
+}

src/BlazorWebFormsComponents/HyperLink.razor.cs

@@ -0,0 +1,16 @@
+using Microsoft.AspNetCore.Components;
+
+namespace BlazorWebFormsComponents
+{
+	public partial class HyperLink : BaseWebFormsComponent
+	{
+		[Parameter]
+		public string NavigationUrl { get; set; }
+
+		[Parameter]
+		public string Target { get; set; } = string.Empty;
+
+		[Parameter]
+		public string Text { get; set; }
+	}
+}