Tweak exo file a bit

Update for new exo module paths

Update exo gen.py for yam upgrade

test_all.sh and reduce test iterations

Fix memory leak in scaled mean test

test_all.sh and reduce test iterations

Switch makefile to build.ninja; use clang 18

Fix broken median test

Switch makefile to build.ninja; use clang 18

Switch makefile to build.ninja; use clang 18

Switch makefile to build.ninja; use clang 18

Updates for exo yam

Make bin/mediocre.so correct again with Exo changes

Hacked the exo clipped mean to work for now

Checkpoint, failed exo vectorization for select()

Some exo vectorization

Failed auto-vectorization

Testing out exo

Add note about FMA3

Use FMA

Use AVX2, for median

Stop using new_random to initialize static variable