added cad view
plane maths, still needs work
Added Orthographic
Started Scenegraph
added DatumLeaf
added screenshot
starting merge of structures
First Topology Render
Merge branch 'master' of https://github.com/veggielane/OpenCAD into mergetemp

Conflicts:
	source/OpenCAD.GUI/CADDocument.xaml
	source/OpenCAD.GUI/MainWindow.xaml
	source/OpenCAD.GUI/MainWindow.xaml.cs
	source/OpenCAD.GUI/OpenCAD.GUI.csproj
	source/OpenCAD.GUI/TeaPotDemo.xaml
	source/OpenCAD.GUI/Views/TeapotView.xaml
	source/OpenCAD.GUI/Views/TeapotView.xaml.cs
	source/OpenCAD.GUI/packages.config
	source/OpenCAD.Test/Maths/Mat4Tests.cs
	source/OpenCAD.Test/OpenCAD.Test.csproj
	source/OpenCad.Core/Maths/Vect3.cs
	source/OpenCad.Core/Meshing/MeshVertex.cs
	source/packages/Rx-Core.2.1.30214.0/lib/Net40/System.Reactive.Core.XML
	source/packages/Rx-Core.2.1.30214.0/lib/Net45/System.Reactive.Core.XML
	source/packages/Rx-Core.2.1.30214.0/lib/NetCore45/System.Reactive.Core.XML
	source/packages/Rx-Core.2.1.30214.0/lib/SL4-WindowsPhone71/System.Reactive.Core.XML
	source/packages/Rx-Core.2.1.30214.0/lib/SL5/System.Reactive.Core.XML
	source/packages/Rx-Interfaces.2.1.30214.0/lib/Net40/System.Reactive.Interfaces.XML
	source/packages/Rx-Interfaces.2.1.30214.0/lib/Net40/System.Reactive.Interfaces.dll
	source/packages/Rx-Interfaces.2.1.30214.0/lib/Net45/System.Reactive.Interfaces.XML
	source/packages/Rx-Interfaces.2.1.30214.0/lib/Net45/System.Reactive.Interfaces.dll
	source/packages/Rx-Interfaces.2.1.30214.0/lib/NetCore45/System.Reactive.Interfaces.XML
	source/packages/Rx-Interfaces.2.1.30214.0/lib/NetCore45/System.Reactive.Interfaces.dll
	source/packages/Rx-Interfaces.2.1.30214.0/lib/Portable-Net45+WinRT45+WP8/System.Reactive.Interfaces.XML
	source/packages/Rx-Interfaces.2.1.30214.0/lib/SL4-WindowsPhone71/System.Reactive.Interfaces.dll
	source/packages/Rx-Interfaces.2.1.30214.0/lib/SL5/System.Reactive.Interfaces.XML
	source/packages/Rx-Interfaces.2.1.30214.0/lib/SL5/System.Reactive.Interfaces.dll
	source/packages/Rx-Linq.2.1.30214.0/lib/Net40/System.Reactive.Linq.XML
	source/packages/Rx-Linq.2.1.30214.0/lib/Net45/System.Reactive.Linq.XML
	source/packages/Rx-Linq.2.1.30214.0/lib/NetCore45/System.Reactive.Linq.XML
	source/packages/Rx-Linq.2.1.30214.0/lib/SL4-WindowsPhone71/System.Reactive.Linq.XML
	source/packages/Rx-Linq.2.1.30214.0/lib/SL5/System.Reactive.Linq.XML
	source/packages/Rx-PlatformServices.2.1.30214.0/lib/Net40/System.Reactive.PlatformServices.XML
	source/packages/Rx-PlatformServices.2.1.30214.0/lib/Net45/System.Reactive.PlatformServices.XML
	source/packages/Rx-PlatformServices.2.1.30214.0/lib/NetCore45/System.Reactive.PlatformServices.XML
	source/packages/Rx-PlatformServices.2.1.30214.0/lib/NetCore45/System.Reactive.PlatformServices.dll
	source/packages/Rx-PlatformServices.2.1.30214.0/lib/SL4-WindowsPhone71/System.Reactive.PlatformServices.XML
	source/packages/Rx-PlatformServices.2.1.30214.0/lib/SL5/System.Reactive.PlatformServices.XML