Destroy Vulkan resources (Refs #277)

computecullandlod/computecullandlod.cpp

@@ -147,6 +147,7 @@ public:
 		vkDestroyPipeline(device, compute.pipeline, nullptr);
 		vkDestroyFence(device, compute.fence, nullptr);
 		vkDestroyCommandPool(device, compute.commandPool, nullptr);
+		vkDestroySemaphore(device, compute.semaphore, nullptr);
 	}
 
 	void reBuildCommandBuffers()

computenbody/computenbody.cpp

@@ -106,6 +106,7 @@ public:
 	~VulkanExample()
 	{
 		// Graphics
+		graphics.uniformBuffer.destroy();
 		vkDestroyPipeline(device, graphics.pipeline, nullptr);
 		vkDestroyPipelineLayout(device, graphics.pipelineLayout, nullptr);
 		vkDestroyDescriptorSetLayout(device, graphics.descriptorSetLayout, nullptr);