XMas-Day-4: DataSet<T>: helpers, estimators, math functions, restructure DataSet #2092

Job	Run time
Update the docker container if it is modified	7s
gcc-14 \| Release	1h 55m 9s
gcc-14 \| Debug	55m 41s
gcc-13 \| Release	51m 49s
gcc-13 \| Debug	54m 40s
clang-18, \| Release	47m 55s
clang-18, \| Debug	1h 1m 35s
emcc \| Release	42m 12s
emcc \| Debug	36m 42s
	7h 45m 50s

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