Merge branch '51-renderpass_fix_membarrier_layouts' into 'master'

Merge branch '51-renderpass_fix_membarrier_layouts' into 'master'

dEQP-VK.renderpass: fix barriers -  COLOR layouts were used for DS images and DS ayout were used for COLOR images

This fixes issue #51.

The test randomizes 'initialLayout' and 'finalizeLayout' variables, that are later used as oldLayout and newLayout in image memory barrier.

Given current test design, it is possible to get COLOR-related layout for depth or depth stencil or stencil image, and vice-versa.

The fix changes the contents of the arrays given variables are randomized from.

See merge request !106