Add support for rendering exceptions

src/Spectre.Console.Tests/Data/Exceptions.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Diagnostics.CodeAnalysis;
+
+namespace Spectre.Console.Tests.Data
+{
+    public static class TestExceptions
+    {
+        [SuppressMessage("Usage", "CA1801:Review unused parameters", Justification = "<Pending>")]
+        public static bool MethodThatThrows(int? number) => throw new InvalidOperationException("Throwing!");
+
+        public static void ThrowWithInnerException()
+        {
+            try
+            {
+                MethodThatThrows(null);
+            }
+            catch (Exception ex)
+            {
+                throw new InvalidOperationException("Something threw!", ex);
+            }
+        }
+    }
+}