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.
I'm a little nervous about defining movlps and movhps intrinsics right now since we don't have even reasonably close mappings for them in SIMD.js right now. Also, I'm surprised to see that they use __m64* in their signature, but that's apparently right. Do you think these are important enough to do anyway, or are they just here for completeness?