epic: refactor SDL2_Renderer usage to IRenderer and queued texture rendering

- Updated the testing guide to clarify the testing framework's organization and execution methods, improving user understanding.
- Refactored CMakeLists to include new platform-specific files, ensuring proper integration of the rendering backend.
- Modified main application files to utilize the new IRenderer interface, enhancing flexibility in rendering operations.
- Implemented deferred texture management in various components, allowing for more efficient graphics handling and improved performance.
- Introduced new methods for texture creation and updates, streamlining the rendering process across the application.
- Enhanced logging and error handling in the rendering pipeline to facilitate better debugging and diagnostics.

src/app/platform/view_controller.h

@@ -0,0 +1,35 @@
+#ifndef YAZE_APP_CORE_PLATFORM_VIEW_CONTROLLER_H
+#define YAZE_APP_CORE_PLATFORM_VIEW_CONTROLLER_H
+
+#ifdef __APPLE__
+#include <TargetConditionals.h>
+
+#if TARGET_OS_OSX
+#ifdef __OBJC__
+@interface AppViewController : NSViewController <NSWindowDelegate>
+@property(nonatomic) yaze::core::Controller *controller;
+@end
+#endif
+#else
+#ifdef __OBJC__
+@interface AppViewController : UIViewController <MTKViewDelegate>
+@property(nonatomic) yaze::core::Controller *controller;
+@property(nonatomic) UIHoverGestureRecognizer *hoverGestureRecognizer;
+@property(nonatomic) UIPinchGestureRecognizer *pinchRecognizer;
+@property(nonatomic) UISwipeGestureRecognizer *swipeRecognizer;
+@property(nonatomic) UILongPressGestureRecognizer *longPressRecognizer;
+@end
+#endif
+#endif
+
+#ifdef __OBJC__
+@interface AppViewController () <MTKViewDelegate>
+@property(nonatomic, readonly) MTKView *mtkView;
+@property(nonatomic, strong) id<MTLDevice> device;
+@property(nonatomic, strong) id<MTLCommandQueue> commandQueue;
+@end
+#endif
+
+#endif  // __APPLE__
+
+#endif  // YAZE_APP_CORE_PLATFORM_VIEW_CONTROLLER_H