Rename Display to Window.

It makes more sense to be consistent and always call it window.

source/Window/GLContext.cpp

@@ -0,0 +1,26 @@
+
+#include <Spectre/Window/GLContext.h>
+
+#ifdef SPECTRE_PLATFORM_WIN
+#include <Platform/Win32/Win32GLContext.h>
+typedef sp::Win32GLContext ContextType;
+#elif SPECTRE_PLATFORM_UNIX
+#include <Platform/Unix/GLXContext.h>
+typedef sp::GLXContext ContextType;
+#else
+#error "No GLContext implementation exists"
+#endif
+
+namespace sp {
+
+GLContext* GLContext::create()
+{
+	return new ContextType();
+}
+
+GLContext::~GLContext()
+{
+	// Nothing to do.
+}
+
+} // namespace sp