rename FadingLogosMode -> FadingLogos; move to new modes package

src/gss.d

@@ -1,7 +1,7 @@
 import screensaver;
 import mode;
 
-import fading_logos_mode;
+import modes.fading_logos;
 
 extern(C) void GetDisplaySize(int * width, int * height, int * num_monitors);
 
@@ -15,7 +15,7 @@ int main()
 
     ScreenSaver ss = new ScreenSaver(width, height);
     Mode modes[] = [
-        new FadingLogosMode(),
+        new FadingLogos(),
     ];
     ss.run(modes);
 

src/modes/fading_logos.d

@@ -6,7 +6,7 @@ import screensaver;
 import mode;
 import default_shader;
 
-class FadingLogosMode : Mode
+class FadingLogos : Mode
 {
     DefaultShader m_shader;