flip the viewport in vulkan so that top is on the top

src/core/gryphn_platform_functions.h

@@ -89,6 +89,8 @@ typedef struct gnDeviceFunctions_t {
 
     gnReturnCode (*_gnSubmit)(struct gnOutputDevice_t* device, struct gnSubmitInfo_t submit);
     gnReturnCode (*_gnPresent)(struct gnOutputDevice_t* device, struct gnPresentInfo_t info);
+
+    void (*_gnWaitForDevice)(struct gnOutputDevice_t* device);
 } gnDeviceFunctions;
 
 typedef struct gnCommandFunctions_t {

src/core/instance/init/gryphn_init.c

@@ -91,6 +91,7 @@ void gnLoadDeviceFunctions(struct gnDynamicLibrary_t* lib, struct gnDeviceFuncti
     gnLoadDLLFunction(lib, functions->_gnDestroyFence, "gnDestroyFenceFn");
     gnLoadDLLFunction(lib, functions->_gnSubmit, "gnSubmitFn");
     gnLoadDLLFunction(lib, functions->_gnPresent, "gnPresentFn");
+    gnLoadDLLFunction(lib, functions->_gnWaitForDevice, "gnWaitForDeviceFn");
 }
 
 void gnLoadCommandFunctions(struct gnDynamicLibrary_t* lib, struct gnCommandFunctions_t* functions) {

src/core/output_device/gryphn_output_device.c

@@ -17,6 +17,9 @@ gnReturnCode gnCreateOutputDevice(gnOutputDevice* outputDevice, gnInstance* inst
     outputDevice->deviceInfo = deviceInfo;
     return instance->functions->_gnCreateOutputDevoce(outputDevice, instance, deviceInfo);
 }
+void gnWaitForDevice(gnOutputDevice *device) {
+    device->deviceFunctions->_gnWaitForDevice(device);
+}
 void gnDestroyOutputDevice(gnOutputDevice* device) {
     device->instance->functions->_gnDestroyOutputDevice(device);
 }

src/core/output_device/gryphn_output_device.h

@@ -26,6 +26,5 @@ typedef struct gnOutputDevice_t {
 } gnOutputDevice;
 
 gnReturnCode gnCreateOutputDevice(gnOutputDevice* outputDevice, gnInstance* instance, struct gnOutputDeviceInfo_t deviceInfo);
+void gnWaitForDevice(gnOutputDevice* device);
 void gnDestroyOutputDevice(gnOutputDevice* device);
-
-// inline void (*gnWaitForDevice)(const gnOutputDevice& device);