CompatHelper: add new compat entry for Statistics at version 1, (keep… #529

Job	Run time
test (1.6, ubuntu-latest, x64, ForwardDiff)	3m 26s
test (1.6, ubuntu-latest, x64, Tracker)	3m 17s
test (1.6, ubuntu-latest, x64, ReverseDiff)	3m 45s
test (1.6, ubuntu-latest, x64, Zygote)	4m 28s
test (1.6, macOS-latest, x64, ForwardDiff)	4m 11s
test (1.6, macOS-latest, x64, Tracker)	4m 24s
test (1.6, macOS-latest, x64, ReverseDiff)	5m 8s
test (1.6, macOS-latest, x64, Zygote)	13m 11s
test (1, ubuntu-latest, x64, ForwardDiff)	3m 58s
test (1, ubuntu-latest, x64, Tracker)	3m 48s
test (1, ubuntu-latest, x64, ReverseDiff)	4m 21s
test (1, ubuntu-latest, x64, Zygote)	5m 3s
test (1, macOS-latest, x64, ForwardDiff)	7m 2s
test (1, macOS-latest, x64, Tracker)	7m 47s
test (1, macOS-latest, x64, ReverseDiff)	8m 7s
test (1, macOS-latest, x64, Zygote)	10m 6s
	1h 32m 2s

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