Move everything from global namespace to "sp" namespace

When writing the X11 (linux) implementation there was a problem with X11 defining a "Display" type and we also have a Display class in the engine.

So to fix that problem and minimize the risk for running into other name conflicts. We move everything from global namespace.

include/Spectre/Display/Display.h

@@ -8,6 +8,8 @@
 #include <Spectre/System/SystemEvent.h>
 #include <string>
 
+namespace sp {
+
 class PlatformDisplay;
 class GLContext;
 
@@ -73,4 +75,6 @@ protected :
 	GLContext*		m_context;
 };
 
+} // namepsace sp
+
 #endif /* SPECTRE_DISPLAY_DISPLAY_H */

include/Spectre/Display/DisplayDescription.h

@@ -4,8 +4,10 @@
 
 #include "DisplayMode.h"
 
+namespace sp {
+
 namespace DisplayDecorate {
-	
+
 	enum Type {
 		None		= 0,
 		Menu		= 1 << 0,
@@ -27,4 +29,6 @@ public :
 	unsigned int	decoration;
 };
 
+} // namespace sp
+
 #endif /* SPECTRE_DISPLAY_DISPLAYDESCRIPTION_H */

include/Spectre/Display/DisplayMode.h

@@ -4,6 +4,8 @@
 
 #include <vector>
 
+namespace sp {
+
 class DisplayMode
 {
 public :
@@ -16,7 +18,7 @@ public :
 
 	inline bool operator==(const DisplayMode& other)
 	{
-		return width == other.width 
+		return width == other.width
 			&& height == other.height
 			&& bpp == other.bpp;
 	}
@@ -32,4 +34,6 @@ public :
 	unsigned int	bpp;	/* Bits per pixel. */
 };
 
+} // namespace sp
+
 #endif /* SPECTRE_DISPLAY_DISPLAYMODE_H */

include/Spectre/Display/GLContext.h

@@ -4,6 +4,8 @@
 
 #include <Spectre/Math/Vector2.h>
 
+namespace sp {
+
 class PlatformDisplay;
 
 // Platform independant interface for OpenGL Contexts.
@@ -43,4 +45,6 @@ public :
 	virtual void swapBuffers() = 0;
 };
 
+} // namespace sp
+
 #endif /* DISPLAY_GLCONTEXT_H */