Support for enums, and adding static variables

PorygonSharpTests/EnumUserdataTest.cs

@@ -0,0 +1,54 @@
+using System;
+using NUnit.Framework;
+using PorygonSharp;
+using PorygonSharp.UserData;
+
+namespace PorygonSharpTests
+{
+    public class EnumUserdataTest
+    {
+        private enum testEnum
+        {
+            One, Two, Three, Foo, Bar
+        }
+        
+        [Test]
+        public void AbleToAccessStaticEnumVariable()
+        {
+            UserDataHandler.RegisterEnumType("testEnum", typeof(testEnum));
+            StaticScope.RegisterStaticVariable("testEnum", testEnum.One);
+            using (var script = new Script(@"
+    return type(testEnum)
+"))
+            {
+                var diags = script.Diagnostics.GetDiagnostics();
+                foreach (var diag in diags)
+                {
+                    throw new Exception(script.Diagnostics.GetFullDiagnosticMessage(diag));
+                }
+                var result = script.Evaluate();
+                Assert.AreEqual("userdata", result.EvaluateString());
+            }
+        }
+
+        [Test]
+        public void AbleToUseStaticEnumVariable()
+        {
+            UserDataHandler.RegisterEnumType("testEnum", typeof(testEnum));
+            StaticScope.RegisterStaticVariable("testEnum", testEnum.One);
+            using (var script = new Script(@"
+    return testEnum.Three + 2
+"))
+            {
+                var diags = script.Diagnostics.GetDiagnostics();
+                foreach (var diag in diags)
+                {
+                    throw new Exception(script.Diagnostics.GetFullDiagnosticMessage(diag));
+                }
+                var result = script.Evaluate();
+                Assert.AreEqual(4, result.EvaluateInteger());
+            }
+        }
+
+    }
+}