Added UpdateVariable class

Advanced Software Engineering/Advanced Software Engineering/Verbs/Value/UpdateVariable.cs

@@ -0,0 +1,28 @@
+namespace Advanced_Software_Engineering.Verbs.Value {
+
+    public class UpdateVariable : IVerb {
+        protected Drawer drawer;
+        protected string name;
+        protected string value;
+
+        public UpdateVariable(Drawer drawer, string name, string value) {
+            this.name = name;
+            this.value = value;
+            this.drawer = drawer;
+        }
+
+        public UpdateVariable(Drawer drawer, string name, IValue value) {
+
+        }
+
+        public void ExecuteVerb() {
+            IValue variable = drawer.GetVariable(name);
+            string type = variable.GetOriginalType();
+            drawer.SetVariable(name, ValueFactory.CreateValue(value, type));
+        }
+
+        public string GetDescription() {
+            return "Updates " + name + " to " + value;
+        }
+    }
+}