Add support for Ed25519 to CMS #52

Job	Run time
Cxx interop / Construct Cxx interop matrix	3s
Benchmarks / Construct Benchmarks matrix	2s
Unit tests / Construct unit test matrix	4s
Check cmake lists / Linux (5.9)	34s
Check cmake lists / Linux (5.10)	31s
Check cmake lists / Linux (6.0)	34s
Check cmake lists / Linux (nightly-6.0)	34s
Check cmake lists / Linux (nightly-main)	39s
Check cmake lists / Windows (6.0)	2s
Check cmake lists / Windows (nightly-6.0)	1s
Check cmake lists / Windows (nightly-main)	2s
Soundness / API breakage check	2m 8s
Soundness / Documentation check	1m 51s
Soundness / License headers check	4s
Soundness / Unacceptable language check	2s
Soundness / Broken symlinks check	3s
Soundness / Format check	37s
Soundness / Python lint check	7s
Soundness / Shell check	35s
Soundness / YAML lint check	5s
Cxx interop / Cxx interop / Linux (5.9)	1m 25s
Cxx interop / Cxx interop / Linux (5.10)	1m 18s
Cxx interop / Cxx interop / Linux (6.0)	1m 27s
Cxx interop / Cxx interop / Linux (nightly-6.0)	1m 46s
Cxx interop / Cxx interop / Linux (nightly-main)	1m 31s
Benchmarks / Benchmarks / Linux (5.9)	8m 28s
Benchmarks / Benchmarks / Linux (5.10)	8m 22s
Benchmarks / Benchmarks / Linux (6.0)	7m 58s
Benchmarks / Benchmarks / Linux (nightly-6.0)	9m 9s
Benchmarks / Benchmarks / Linux (nightly-main)	8m 8s
Unit tests / Unit tests / Linux (5.9)	3m 25s
Unit tests / Unit tests / Linux (5.10)	3m 21s
Unit tests / Unit tests / Linux (6.0)	3m 30s
Unit tests / Unit tests / Linux (nightly-6.0)	3m 46s
Unit tests / Unit tests / Linux (nightly-main)	3m 24s
	1h 15m 36s

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