add SoftDemo examples

add example description for all examples (with word-wrap)
add the VoronoiFractureDemo, note that the collision are disabled after breaking constraints.
add optional GwenOpenGLTest, to make it easier to see Gwen user interface features.

test/GwenOpenGLTest/Properties.cpp

@@ -0,0 +1,63 @@
+#include "UnitTest.h"
+#include "Gwen/Controls/Properties.h"
+#include "Gwen/Controls/PropertyTree.h"
+
+using namespace Gwen;
+
+class Properties2 : public GUnit
+{
+	public:
+
+	GWEN_CONTROL_INLINE( Properties2, GUnit )
+	{
+		{
+			Gwen::Controls::Properties* props = new Gwen::Controls::Properties( this );
+
+			props->SetBounds( 10, 10, 150, 300 );
+
+			{
+				{
+					Gwen::Controls::PropertyRow* pRow = props->Add( L"First Name" );
+					pRow->onChange.Add( this, &Properties2::OnFirstNameChanged );
+				}
+
+				props->Add( L"Middle Name" );
+				props->Add( L"Last Name" );
+			}
+
+		}
+
+		{
+			Gwen::Controls::PropertyTree* ptree = new Gwen::Controls::PropertyTree( this );
+			ptree->SetBounds( 200, 10, 200, 200 );
+
+			{
+				Gwen::Controls::Properties* props = ptree->Add( L"Item One" );
+				props->Add( L"Middle Name" );
+				props->Add( L"Last Name" );
+				props->Add( L"Four" );
+			}
+
+			{
+				Gwen::Controls::Properties* props = ptree->Add( L"Item Two" );
+				props->Add( L"More Items" );
+				props->Add( L"To Fill" );
+				props->Add( L"Out Here" );
+			}
+
+			ptree->ExpandAll();
+
+		}
+	}
+
+	void OnFirstNameChanged( Controls::Base* pControl )
+	{
+		Gwen::Controls::PropertyRow* pRow = (Gwen::Controls::PropertyRow*) pControl;
+		UnitPrint( Utility::Format( L"First Name Changed: %s", pRow->GetProperty()->GetPropertyValue().c_str() ) );
+	}
+
+};
+
+
+
+DEFINE_UNIT_TEST( Properties2, L"Properties" );