[ENH] implement one-way ANOVA at group level to compare groups #1045

Job	Run time
tests (system, moae, ubuntu-latest, R2023b)	24m 56s
tests (system, moae, macos-13, R2023b)	42m 57s
tests (system, facerep, ubuntu-latest, R2023b)	35m 55s
tests (system, facerep, macos-13, R2023b)	44m 37s
tests (system, fmriprep, ubuntu-latest, R2023b)	6m 19s
tests (system, fmriprep, macos-13, R2023b)	11m 24s
tests (system, ubuntu-latest, R2023b, bms)	18m 17s
tests (unit, ubuntu-latest, R2023b, fast)	7m 53s
tests (unit, macos-13, R2023b, fast)	13m 39s
tests (unit, ubuntu-latest, R2023b, slow)	15m 27s
tests (unit, macos-13, R2023b, slow)	27m 12s
tests (unit, macos-13, R2023b, fast)	14m 41s
	4h 23m 17s

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