Add support for rendering exceptions

src/Spectre.Console/ExceptionFormat.cs

@@ -0,0 +1,41 @@
+using System;
+
+namespace Spectre.Console
+{
+    /// <summary>
+    /// Represents how an exception is formatted.
+    /// </summary>
+    [Flags]
+    public enum ExceptionFormats
+    {
+        /// <summary>
+        /// The default formatting.
+        /// </summary>
+        None = 0,
+
+        /// <summary>
+        /// Whether or not paths should be shortened.
+        /// </summary>
+        ShortenPaths = 1,
+
+        /// <summary>
+        /// Whether or not types should be shortened.
+        /// </summary>
+        ShortenTypes = 2,
+
+        /// <summary>
+        /// Whether or not methods should be shortened.
+        /// </summary>
+        ShortenMethods = 4,
+
+        /// <summary>
+        /// Whether or not to show paths as links in the terminal.
+        /// </summary>
+        ShowLinks = 8,
+
+        /// <summary>
+        /// Shortens everything that can be shortened.
+        /// </summary>
+        ShortenEverything = ShortenMethods | ShortenTypes | ShortenPaths,
+    }
+}