vec_ops: scalar * ext field #88

Job	Run time
Check Spelling	9s
check-changed-files / Check Changed Files	5s
extract-cuda-backend-branch / Extract cuda branch name	4s
Check Code Format	28s
Run Rust Examples	35m 17s
Build and test Go & RUST hash on Linux	5m 58s
Test curve on Linux (bn254, -DG2=ON -DECNTT=ON)	12m 18s
Test field on Linux (babybear, -DEXT_FIELD=ON)	8m 46s
Test curve on Linux (bls12_381, -DG2=ON -DECNTT=ON)	30m 40s
Test field on Linux (stark252, -DEXT_FIELD=OFF)	8m 12s
Test curve on Linux (bls12_377, -DG2=ON -DECNTT=ON)	20m 3s
Test field on Linux (m31, -DEXT_FIELD=ON)	2m 56s
Test curve on Linux (bw6_761, -DG2=ON -DECNTT=ON)	1h 6m 53s
Test field on Linux (koalabear, -DEXT_FIELD=ON)	10m 6s
Test curve on Linux (grumpkin, -DG2=OFF -DECNTT=OFF)	9m 1s
	3h 30m 56s

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