split painter and context classes in nvwidgets.pas into separate source file

fixed compilation example.pp
renamed context and painter source files to be more clear


git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@2248 8e941d3f-bd1b-0410-a28a-d453659cc2b4

components/nvidia-widgets/src/gl/glfreetype.pas

@@ -10,8 +10,7 @@ unit GLFreeType;
 interface
 
 uses
-  SysUtils, freetypeh, GL, GLu,
-  nvBaseFont;
+  SysUtils, freetypeh, GL, GLu;
 
 //This holds all of the information related to any
 //freetype font that we want to create.

components/nvidia-widgets/src/gl/nvglpainter.pas

@@ -7,14 +7,14 @@
 //
 // Copyright (c) NVIDIA Corporation. All rights reserved.
 ////////////////////////////////////////////////////////////////////////////////
-unit nvGLWidgets;
+unit nvGLPainter;
 
 {$mode objfpc}{$H+}
 
 interface
 
 uses
-  Classes, nvWidgets,
+  Classes, nvPainter, nvTypes,
   GL, ftFont, FPCanvas;
 
 const