Modify testing to only record validation pass/fail

* Changed unit tests to only record known the validation pass/fail
status
 * errors are output as part of the failure message if the result is
 unexpected
 * can turn off validation for each test individually
* Moved some SPV_KHR_vulkan_memory_model tests to be compiled for Vulkan
1.1

Test/baseResults/hlsl.intrinsics.vert.out

@@ -2778,10 +2778,7 @@ Shader version: 500
 0:413            'inFM3x2' ( in 3X2 matrix of float)
 0:?   Linker Objects
 
-error: SPIRV-Tools Validation Errors
-error: Matrix types can only be parameterized with floating-point types.
-  %mat2v2bool = OpTypeMatrix %v2bool 2
-
+Validation failed
 // Module Version 10000
 // Generated by (magic number): 80007
 // Id's are bound by 1225