fast copy struct dest struct for golang.
see example_test.go
goos: windows
goarch: amd64
pkg: github.com/liguangsheng/go-copy/benchmark
BenchmarkJinzhuCopyBig-8 10000 114140 ns/op 38944 B/op 675 allocs/op
BenchmarkDeepCopyBig-8 732 1482533 ns/op 1907792 B/op 25759 allocs/op
BenchmarkJSONCopyBig-8 50223 23857 ns/op 4438 B/op 142 allocs/op
BenchmarkThisRepoCopyBig-8 1486052 807 ns/op 896 B/op 1 allocs/op
BenchmarkJinzhuCopyMedium-8 226514 5669 ns/op 4136 B/op 72 allocs/op
BenchmarkDeepCopyMedium-8 53980 20994 ns/op 21672 B/op 331 allocs/op
BenchmarkJSONCopyMedium-8 521784 2466 ns/op 440 B/op 16 allocs/op
BenchmarkThisRepoCopyMedium-8 3804498 297 ns/op 96 B/op 1 allocs/op
BenchmarkJinzhuCopySmall-8 750013 1745 ns/op 1200 B/op 25 allocs/op
BenchmarkDeepCopySmall-8 406654 3108 ns/op 2520 B/op 49 allocs/op
BenchmarkJSONCopySmall-8 1889121 613 ns/op 104 B/op 5 allocs/op
BenchmarkThisRepoCopySmall-8 5519410 226 ns/op 32 B/op 1 allocs/op
PASS
ok github.com/liguangsheng/go-copy/benchmark 17.516s