VkBuffer objects created with the
VK_BUFFER_CREATE_SPARSE_RESIDENCY_BIT bit allow the buffer to be made
only partially resident.
Partially resident VkBuffer objects are allocated and bound
identically to VkBuffer objects using only the
VK_BUFFER_CREATE_SPARSE_BINDING_BIT feature.
The only difference is the ability for some regions of the buffer to be
unbound during device use.