Add secondary command buffer tests for the VK_KHR_protected_memory extension

Add secondary command buffer tests for the VK_KHR_protected_memory extension

Add secondary command buffer tests for:
* Attachment clear tests.
* Blit image, copy image, clear color image tests.
* Fill, update, copy buffer tests.
* Copy buffer to image tests and copy image to buffer tests.

New tests:
* dEQP-VK.protected_memory.attachment.clear_op.*.secondary.*
* dEQP-VK.protected_memory.image.*.secondary.*
* dEQP-VK.protected_memory.buffer.*.secondary.*

Components: Vulkan
VK-GL-CTS issue: 118

Change-Id: Ica36108cff735568c15a338e13ab8fb72f2420f0