Add sample for cross-origin aspnetcore identity

Author: andrewlock

cross-origin-aspnetcore-identity/Areas/Identity/Pages/_ViewStart.cshtml

@@ -0,0 +1,3 @@
+@{
+    Layout = "/Pages/Shared/_Layout.cshtml";
+}

cross-origin-aspnetcore-identity/Data/ApplicationDbContext.cs

@@ -0,0 +1,12 @@
+using Microsoft.AspNetCore.Identity.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
+
+namespace cross_origin_aspnetcore_identity.Data;
+
+public class ApplicationDbContext : IdentityDbContext
+{
+    public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options)
+        : base(options)
+    {
+    }
+}