Minor - Add Assets And Support Dual Screen

Assets/OmniShade/How to create MatCaps.md

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+How to create MatCaps
+---------------------
+MatCaps can be downloaded, or you can create your own using a tool like ZBrush.
+
+ZBrush Matcap Library
+https://pixologic.com/zbrush/downloadcenter/library/
+
+
+ZBrush MatCap texture export
+----------------------------
+You can export a texture from a matcap in Material->Modifiers->Create Matcap Texture
+Then, the MatCap texture can be exported from the Texture Palette as an .exr.