VK_KHR_maintenance1: Test vkAllocate* failure behavior

VK_KHR_maintenance1: Test vkAllocate* failure behavior

This tests updated behavior of vkAllocateCommandBuffers and
vkAllocateDescriptorSets. When allocating objects in bulk,
if some allocations fail then all objects must be freed and
handles must be set to VK_NULL_HANDLE.

Modified tests:
- dEQP-VK.api.object_management.alloc_callback_fail_multiple.descriptor_set
- dEQP-VK.api.object_management.alloc_callback_fail_multiple.command_buffer_primary
- dEQP-VK.api.object_management.alloc_callback_fail_multiple.command_buffer_secondary

Issue #532

Change-Id: If03e7cdbec4d13bd0671bab9d6a1edd9107636b5