SSE1 test suite.

Adds a _failing_ test which refers to _each_ intrinsic provided by Intel Intrinsic reference in `xmmintrin.h`. Not to be merged yet , unless we skip the test from being run in the suite. The test passes if built and run natively with gcc or clang.
Hmm, not sure if "that's how it's always been done" is a good reason, but reverted back to the Clang ordering now, guess it doesn't matter much.