Reuse functions from Cardano.Api.Tx.Body and match nomenclature. #6511

Job	Run time
Build & test (hydra-plutus)	6m 36s
Build & test (hydra-tui)	10m 53s
Build & test (hydra-node)	11m 5s
Build haddock using nix	10m 10s
Build & test (hydra-tx)	8m 3s
Build & test (hydra-cluster)	10m 47s
Benchmarks (hydra-node, tx-cost, --output-directory $(pwd)/../benchmarks)	10m 39s
Benchmarks (hydra-node, micro, -o $(pwd)/../benchmarks/ledger-bench.html)	9m 53s
Build specification using nix	2m 6s
Benchmarks (hydra-cluster, bench-e2e, datasets datasets/1-node.json datasets/3-nodes.json --outpu...	10m 21s
nix flake check	5m 8s
Compute cost differences	12m 6s
Publish benchmark results	0s
Documentation	0s
Publish test results	0s
	1h 47m 47s

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