Rework internal module registration to happen in constructors.

src/modules/window/sdl/Window.cpp

@@ -88,7 +88,8 @@ namespace sdl
 {
 
 Window::Window()
-	: open(false)
+	: love::window::Window("love.window.sdl")
+	, open(false)
 	, mouseGrabbed(false)
 	, window(nullptr)
 	, glcontext(nullptr)
@@ -1503,11 +1504,6 @@ void Window::requestAttention(bool continuous)
 	// TODO: Linux?
 }
 
-const char *Window::getName() const
-{
-	return "love.window.sdl";
-}
-
 } // sdl
 } // window
 } // love

src/modules/window/sdl/Window.h

@@ -130,8 +130,6 @@ public:
 
 	void requestAttention(bool continuous) override;
 
-	const char *getName() const override;
-
 private:
 
 	struct ContextAttribs