Chapter 2: Drawing with compute - draw format indicated as 32 bit, but 16 is used

[Fabxx]

//draw image size will match the window
	VkExtent3D drawImageExtent = {
		_windowExtent.width,
		_windowExtent.height,
		1
	};

	//hardcoding the draw format to 32 bit float
	_drawImage.imageFormat = VK_FORMAT_R16G16B16A16_SFLOAT;
	_drawImage.imageExtent = drawImageExtent;