Check SPV_KHR_float_controls usage w/o OpExtension

Check SPV_KHR_float_controls usage w/o OpExtension

Runs float controls test under Vulkan 1.2, that includes SPIR-V
with embedded float controls into core and thus does not require
SPV_KHR_float_controls extension in shader code.

Add tests:
 * dEQP-VK.spirv_assembly.instruction.compute.float_controls_extensionless.*

Components: Vulkan

VK-GL-CTS issue: 1707

Change-Id: I4da1183a59cce915b32b2e052235fd705342fb82
(cherry picked from commit 9d0c6a51fec7bfe1b9fd1178436dbf792c2e5015)