Add vb webapi templates

Templates/webapi/Program.vb

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+' This application entry point is based on ASP.NET Core new project templates and is included
+' as a starting point for app host configuration.
+' This file may need updated according to the specific scenario of the application being upgraded.
+' For more information on ASP.NET Core hosting, see https://docs.microsoft.com/aspnet/core/fundamentals/host/web-host
+
+Imports Microsoft.AspNetCore.Hosting
+Imports Microsoft.Extensions.Hosting
+
+Public Module Program
+    Public Sub Main(args As String())
+        CreateHostBuilder(args).Build().Run()
+    End Sub
+
+    Public Function CreateHostBuilder(args As String()) As IHostBuilder
+        Return Host.CreateDefaultBuilder(args).ConfigureWebHostDefaults(
+               Sub(webBuilder)
+                   webBuilder.UseStartup(Of Startup)()
+               End Sub
+        )
+    End Function
+End Module

Templates/webapi/Startup.vb

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+' This Startup file Is based on ASP.NET Core New project templates And Is included
+' as a starting point for DI registration And HTTP request processing pipeline configuration.
+' This file will need updated according to the specific scenario of the application being upgraded.
+' For more information on ASP.NET Core startup files, see https://docs.microsoft.com/aspnet/core/fundamentals/startup
+
+Imports Microsoft.AspNetCore.Builder
+Imports Microsoft.AspNetCore.Hosting
+Imports Microsoft.Extensions.Configuration
+Imports Microsoft.Extensions.DependencyInjection
+Imports Microsoft.Extensions.Hosting
+
+Public Class Startup
+    Public Sub New(configuration As IConfiguration)
+        Me.Configuration = configuration
+    End Sub
+
+    Public ReadOnly Property Configuration As IConfiguration
+
+    ' This method gets called by the runtime. Use this method to add services to the container.
+    Public Sub ConfigureServices(services As IServiceCollection)
+        services.AddControllers()
+    End Sub
+
+    ' This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
+    Public Sub Configure(app As IApplicationBuilder, env As IWebHostEnvironment)
+
+        If (env.IsDevelopment()) Then
+            app.UseDeveloperExceptionPage()
+        End If
+
+        app.UseFileServer()
+        app.UseRouting()
+        app.UseAuthorization()
+
+        app.UseEndpoints(
+             Sub(routes)
+                 routes.MapControllers()
+             End Sub)
+
+    End Sub
+End Class