feat: add p/demo/ownable #1324

Job	Run time
build (1.20.x, amd64, linux, ./pkg/amino/cmd/aminoscan)	6s
build (1.20.x, amd64, linux, ./pkg/amino/cmd/aminoscan)	6s
build (1.20.x, amd64, linux, ./pkg/amino/cmd/goscan)	18s
build (1.20.x, amd64, linux, ./pkg/amino/cmd/goscan)	18s
build (1.20.x, amd64, linux, ./pkg/autofile/cmd)	20s
build (1.20.x, amd64, linux, ./pkg/autofile/cmd)	20s
build (1.20.x, amd64, linux, ./pkg/iavl/cmd/iaviewer)	17s
build (1.20.x, amd64, linux, ./pkg/iavl/cmd/iaviewer)	17s
build (1.21.x, amd64, linux, ./pkg/amino/cmd/aminoscan)	23s
build (1.21.x, amd64, linux, ./pkg/amino/cmd/aminoscan)	23s
test (1.20.x, _test.flappy)	35s
test (1.20.x, _test.flappy)	35s
build (1.21.x, amd64, linux, ./pkg/amino/cmd/goscan)	30s
build (1.21.x, amd64, linux, ./pkg/amino/cmd/goscan)	30s
test (1.20.x, _test.pkg.amino)	4m 40s
test (1.20.x, _test.pkg.amino)	4m 40s
build (1.21.x, amd64, linux, ./pkg/autofile/cmd)	31s
build (1.21.x, amd64, linux, ./pkg/autofile/cmd)	31s
test (1.20.x, _test.pkg.bft)	4m 41s
test (1.20.x, _test.pkg.bft)	4m 41s
build (1.21.x, amd64, linux, ./pkg/iavl/cmd/iaviewer)	23s
build (1.21.x, amd64, linux, ./pkg/iavl/cmd/iaviewer)	23s
test (1.20.x, _test.pkg.others)	6m 32s
test (1.20.x, _test.pkg.others)	6m 32s
test (1.21.x, _test.flappy)	38s
test (1.21.x, _test.flappy)	38s
test (1.21.x, _test.pkg.amino)	4m 10s
test (1.21.x, _test.pkg.amino)	4m 10s
test (1.21.x, _test.pkg.bft)	5m 13s
test (1.21.x, _test.pkg.bft)	5m 13s
test (1.21.x, _test.pkg.others)	3m 50s
test (1.21.x, _test.pkg.others)	3m 50s
upload-coverage	41s
upload-coverage	5s
	1h 7m 0s

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