Add `ExpandDerive` handler #7394

Job	Run time
build test linux x86-64	4m 27s
build test windows x86-64	14m 10s
check-rust	1m 54s
check-website	14s
scarb-metadata compatibility check	48s
doc tests	3m 6s
test linux x86-64 1/8	15m 42s
test linux x86-64 2/8	16m 41s
test linux x86-64 3/8	14m 53s
test linux x86-64 4/8	12m 43s
test linux x86-64 5/8	12m 15s
test linux x86-64 6/8	9m 27s
test linux x86-64 7/8	9m 33s
test linux x86-64 8/8	10m 29s
test windows x86-64 1/8	14m 4s
test windows x86-64 2/8	17m 5s
test windows x86-64 3/8	13m 39s
test windows x86-64 4/8	13m 15s
test windows x86-64 5/8	11m 21s
test windows x86-64 6/8	9m 18s
test windows x86-64 7/8	8m 49s
test windows x86-64 8/8	10m 51s
	3h 44m 44s

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