Allow optimization for SPIR-V 1.4

Allow optimization for SPIR-V 1.4

This commit updates function optimizeCompiledBinary with
missing optimization reciepe for SPIR-V 1.4.

Also makes supports_VK_KHR_spirv_1_4 as an optional argument of
SpirVAsmBuildOptions constructor, though defaulting it to disable
support of SPIR-V 1.4.

The change affects if run with optimization command line arguments,
i.e. --deqp-optimize-spirv=enable and --deqp-optimization-recipe=!0

Affects:
 * dEQP-VK.spirv_assembly.instruction.spirv1p4.*

Components: Framework

VK-GL-CTS issue: 1636

Change-Id: If0af53ea37521e686ca7d422cab9589cc0460dc5