Split __m128d (double) from __m128 (float) SSE types

This also removes the display type selection, which didn't work
anyway. __m128 were only displayed as floats.

Change-Id: I2e3df0cd87a21abb0e3d844384e18cb9e5e6a021
Reviewed-by: hjk <hjk121@nokiamail.com>
Add AVX types __m256, __m256d and __m256i to the dumpers

Change-Id: I16126091c8c3a241d0b91534ecdb5f0cbf7d5bd5
Reviewed-by: hjk <hjk121@nokiamail.com>