Add sarray_transfer_soa#56

Draft

kmittal2 wants to merge 2 commits intoNek5000:masterfrom

kmittal2:sarray-transfer-soa

Commits on Jan 5, 2026

initial commit with working transfer
kmittal2
committed

Commits on Jan 6, 2026

simplify send logic to avoid duplication of src rank.. also updated unit test to check both interfaces
kmittal2
committed