Add SDL_Window to initGraphicsContext prototype

This value is needed for vulkan to properly allocate a surface, and would benefit OpenGL to move more of its initialization code into here rather than in `emulator.cpp`.

include/PICA/gpu.hpp

@@ -83,7 +83,7 @@ class GPU {
 	bool lightingLUTDirty = false;
 
 	GPU(Memory& mem, EmulatorConfig& config);
-	void initGraphicsContext() { renderer->initGraphicsContext(); }
+	void initGraphicsContext(SDL_Window* window) { renderer->initGraphicsContext(window); }
 	void display() { renderer->display(); }
 	void screenshot(const std::string& name) { renderer->screenshot(name); }
 
@@ -103,9 +103,7 @@ class GPU {
 
 	// TODO: Emulate the transfer engine & its registers
 	// Then this can be emulated by just writing the appropriate values there
-	void clearBuffer(u32 startAddress, u32 endAddress, u32 value, u32 control) {
-		renderer->clearBuffer(startAddress, endAddress, value, control);
-	}
+	void clearBuffer(u32 startAddress, u32 endAddress, u32 value, u32 control) { renderer->clearBuffer(startAddress, endAddress, value, control); }
 
 	// TODO: Emulate the transfer engine & its registers
 	// Then this can be emulated by just writing the appropriate values there