feat(examples): add todolist package & realm (#1811) #1

Job	Run time
build (1.21.x, amd64, linux, ./pkg/amino/cmd/aminoscan)	13s
build (1.21.x, amd64, linux, ./pkg/amino/cmd/goscan)	10s
test (1.21.x, _test.flappy)	38s
test (1.21.x, _test.pkg.amino)	1m 36s
build (1.21.x, amd64, linux, ./pkg/autofile/cmd)	19s
test (1.21.x, _test.pkg.bft)	21m 15s
build (1.21.x, amd64, linux, ./pkg/iavl/cmd/iaviewer)	19s
build (1.22.x, amd64, linux, ./pkg/amino/cmd/aminoscan)	12s
test (1.21.x, _test.pkg.others)	1m 24s
build (1.22.x, amd64, linux, ./pkg/amino/cmd/goscan)	9s
test (1.22.x, _test.flappy)	36s
build (1.22.x, amd64, linux, ./pkg/autofile/cmd)	15s
test (1.22.x, _test.pkg.amino)	1m 33s
test (1.22.x, _test.pkg.bft)	2m 39s
test (1.22.x, _test.pkg.others)	1m 19s
build (1.22.x, amd64, linux, ./pkg/iavl/cmd/iaviewer)	20s
upload-coverage	0s
	32m 57s

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