Use common code for SG arithmetic-like tests

Use common code for SG arithmetic-like tests

Factor out the parts of arithmetic, clustered, and partitioned subgroup
tests so that common code can be written where possible.

Components: Vulkan
Affects: dEQP-VK.subgroups.arithmetic.*
         dEQP-VK.subgroups.clustered.*
         dEQP-VK.subgroups.partitioned.*

Change-Id: I8b580c6b4f90229f2cb5a6324dc0c338709c3921