LibCore: Put all classes in the Core namespace and remove the leading C

I've been wanting to do this for a long time. It's time we start being
consistent about how this stuff works.

The new convention is:

- "LibFoo" is a userspace library that provides the "Foo" namespace.

That's it :^) This was pretty tedious to convert and I didn't even
start on LibGUI yet. But it's coming up next.

2 files changed, 2 insertions, 2 deletions

diff --git a/Games/Snake/SnakeGame.cpp b/Games/Snake/SnakeGame.cpp
index af494a94b6..6ffd0a3845 100644
--- a/Games/Snake/SnakeGame.cpp
+++ b/Games/Snake/SnakeGame.cpp
@@ -102,7 +102,7 @@ Rect SnakeGame::high_score_rect() const
     return { 2, height() - font().glyph_height() - 2, high_score_width, font().glyph_height() };
 }
 
-void SnakeGame::timer_event(CTimerEvent&)
+void SnakeGame::timer_event(Core::TimerEvent&)
 {
     Vector<Coordinate> dirty_cells;
 
diff --git a/Games/Snake/SnakeGame.h b/Games/Snake/SnakeGame.h
index 5df9ce40d0..8dbf8f1d84 100644
--- a/Games/Snake/SnakeGame.h
+++ b/Games/Snake/SnakeGame.h
@@ -41,7 +41,7 @@ private:
     explicit SnakeGame(GWidget* parent = nullptr);
     virtual void paint_event(GPaintEvent&) override;
     virtual void keydown_event(GKeyEvent&) override;
-    virtual void timer_event(CTimerEvent&) override;
+    virtual void timer_event(Core::TimerEvent&) override;
 
     struct Coordinate {
         int row { 0 };