feat(quantized): add dequantize_i8_to_f32 #177

Job	Run time
nostd/thumbv6m-none-eabi/stable	39s
clippy/stable	28s
cross_test/i686-unknown-linux-gnu/stable	1m 46s
format/stable	27s
cross_test/s390x-unknown-linux-gnu/stable	1m 46s
Pass MSRV values to other jobs	3s
native-backend/stable	47s
cargo-careful	-1s
docs/nightly	-1s
miri	-1s
blas-msrv	1m 6s
tests/stable	1m 8s
tests/1.64.0	1m 4s
tests/beta	1m 0s
conclusion	-1s
	10m 10s

Provide feedback