feat(burn): VNNI-accelerated CompiledLinear + EULER_GAMMA cleanup #165

Job	Run time
cross_test/i686-unknown-linux-gnu/stable	1m 42s
cross_test/s390x-unknown-linux-gnu/stable	1m 38s
native-backend/stable	41s
clippy/stable	19s
format/stable	18s
nostd/thumbv6m-none-eabi/stable	31s
Pass MSRV values to other jobs	3s
docs/nightly	0s
miri	0s
cargo-careful	0s
tests/stable	1m 2s
blas-msrv	59s
tests/1.64.0	56s
tests/beta	1m 3s
conclusion	0s
	9m 12s

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