Consolidate EVP_PKEY usage; Add (unstable) ML-DSA API #222

Job	Run time
GCC 7 - CMake 0 - FIPS 0	4m 22s
GCC 4.8 - CMake 0 - FIPS 0	12m 55s
GCC 7 - CMake 0 - FIPS 1	5m 12s
C-std ubuntu-latest - 11 - Force CMake 0	3m 7s
GCC 4.8 - CMake 0 - FIPS 1	7m 35s
GCC 8 - CMake 0 - FIPS 0	4m 8s
C-std ubuntu-latest - 11 - Force CMake 1	2m 14s
GCC 5 - CMake 0 - FIPS 0	6m 57s
GCC 8 - CMake 0 - FIPS 1	5m 51s
C-std ubuntu-latest - 99 - Force CMake 0	1m 30s
GCC 5 - CMake 0 - FIPS 1	9m 24s
GCC 7 - CMake 1 - FIPS 0	3m 49s
C-std ubuntu-latest - 99 - Force CMake 1	1m 53s
GCC 6 - CMake 0 - FIPS 0	7m 54s
C-std macos-13 - 11 - Force CMake 0	3m 9s
GCC 6 - CMake 0 - FIPS 1	9m 18s
GCC 7 - CMake 1 - FIPS 1	5m 37s
GCC 4.8 - CMake 1 - FIPS 0	6m 42s
GCC 8 - CMake 1 - FIPS 0	4m 11s
GCC 4.8 - CMake 1 - FIPS 1	11m 43s
GCC 8 - CMake 1 - FIPS 1	5m 27s
C-std macos-13 - 11 - Force CMake 1	2m 0s
GCC 5 - CMake 1 - FIPS 0	9m 3s
C-std macos-13 - 99 - Force CMake 0	2m 47s
GCC 5 - CMake 1 - FIPS 1	7m 29s
C-std macos-13 - 99 - Force CMake 1	2m 18s
GCC 6 - CMake 1 - FIPS 0	6m 57s
C-std macos-14-xlarge - 11 - Force CMake 0	1m 29s
GCC 6 - CMake 1 - FIPS 1	13m 0s
C-std macos-14-xlarge - 11 - Force CMake 1	1m 26s
C-std macos-14-xlarge - 99 - Force CMake 0	1m 30s
C-std macos-14-xlarge - 99 - Force CMake 1	2m 14s
C-std windows-latest - 11 - Force CMake 0	4m 28s
C-std windows-latest - 11 - Force CMake 1	5m 3s
C-std windows-latest - 99 - Force CMake 0	4m 13s
C-std windows-latest - 99 - Force CMake 1	4m 43s
	3h 11m 38s

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