Extend multiview tests

Extend multiview tests

Add multiview queries tests for:
 * occlusion queries
 * timestamp queries

Clear attachment test reimplemented to avoid usage of geometry shader
and added test to validate loading from multiview attachments.

Add tests
 * dEQP-VK.multiview.queries.*
 * dEQP-VK.multiview.readback_with_explicit_clear.*
 * dEQP-VK.multiview.readback_with_implicit_clear.*
 * dEQP-VK.multiview.*.5_10_5_10.*

Updates tests
 * dEQP-VK.multiview.clear_attachments.*

Components: Vulkan

VK-GL-CTS issue: 789

Change-Id: I66063f99eea4dfd8936f9b88d02ede043ae52553