Vulkan CTS 1.0.2.3 New tests: * Add tests for VK_KHR_shared_presentable_image * Add tests for VK_KHR_get_surface_capabilities2 Fixes: * makeFramebufferWithoutAttachments creates invalid framebuffer * Fix typo in dE-IT.build_info.de_endianness_consistent name * Fix - uniform buffer incorrectly dereferenced * Use vkGetInstanceProcAddr(NULL) to load platform funcs * Imgtec Waiver for texture_gather*cube*depth32f* * Add VK_KHR_incremental_present to the list of allowed device extensions * Use -std=c++03 with GCC and clang * Fix GCC 6.3 warnings in vulkan-cts-1.0.2 * Improve check_build_sanity.py * Relax image verification in anisotropic filtering tests * Respect maxColorAttachments in image tests * Fix SPIR-V generation in dEQP-VK.spirv_assembly * Fix - depth/stencil images mandatory only for VK_IMAGE_TYPE_2D * Add missing barrier in ssbo layout tests