Vulkan CTS 1.1.4.1 New tests: * Tests for VK_KHR_uniform_buffer_standard_layout Fixes: * Fixes linear support check for pipeline tests * Check for depthBiasClamp feature before using it * Check for imageCubeArray support before using VK_IMAGE_VIEW_TYPE_CUBE_ARRAY * Reduce expected precision of RGB10A2 filtering * Fix memory initialisation in subgroups tests * Fixes pipeline tests to check for maxSamplerLodBias * Add float 16 calculation into FMA tests * Create YCbCr with PREDEFINED layout * Check for geometry shader support when testing adjacency topologies * Add hasDisplay check after createWsiDisplay throws * Add feature checks to spirv assembly tests * Fix uninitialized variable reported by gcc 8.3 * Fix element size for R16G16B16A16_UNORM. * Fixed buffer memory type for protected test * Check for geometry shader support when testing adjacency topologies * Missing format checks for vertex attribute and color attachments in input_ouput tests Improvements: * Require Python 3