常用经典哈希函数Go语言实现，提供uint32及uint64类型的哈希函数。
使用方式：
import "github.com/gogf/gf/encoding/ghash"
接口文档：
https://godoc.org/github.com/gogf/gf/encoding/ghash
基准测试：
goos: darwin goarch: amd64 pkg: github.com/gogf/gf/v2/encoding/ghash cpu: Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz Benchmark_BKDR Benchmark_BKDR-12 57771193 19.26 ns/op Benchmark_BKDR64 Benchmark_BKDR64-12 48366402 22.29 ns/op Benchmark_BKDR64Str Benchmark_BKDR64Str-12 15489008 76.86 ns/op Benchmark_SDBM Benchmark_SDBM-12 62047813 19.21 ns/op Benchmark_SDBM64 Benchmark_SDBM64-12 53550828 22.53 ns/op Benchmark_SDBM64Str Benchmark_SDBM64Str-12 14554824 78.05 ns/op Benchmark_RS Benchmark_RS-12 62434228 19.22 ns/op Benchmark_SRS64 Benchmark_SRS64-12 53818828 22.57 ns/op Benchmark_SRS64Str Benchmark_SRS64Str-12 14620653 77.53 ns/op Benchmark_JS Benchmark_JS-12 63068625 19.27 ns/op Benchmark_JS64 Benchmark_JS64-12 52787070 22.57 ns/op Benchmark_JS64Str Benchmark_JS64Str-12 15130551 78.44 ns/op Benchmark_PJW Benchmark_PJW-12 42726382 28.05 ns/op Benchmark_PJW64 Benchmark_PJW64-12 31651485 37.24 ns/op Benchmark_PJW64Str Benchmark_PJW64Str-12 17988242 66.14 ns/op Benchmark_ELF Benchmark_ELF-12 38743060 32.27 ns/op Benchmark_ELF64 Benchmark_ELF64-12 44347190 27.21 ns/op Benchmark_ELF64Str Benchmark_ELF64Str-12 21851034 54.08 ns/op Benchmark_DJB Benchmark_DJB-12 62567550 19.19 ns/op Benchmark_DJB64 Benchmark_DJB64-12 48457785 22.59 ns/op Benchmark_DJB64Str Benchmark_DJB64Str-12 17026551 70.00 ns/op Benchmark_AP Benchmark_AP-12 29729103 40.25 ns/op Benchmark_AP64 Benchmark_AP64-12 28342160 42.93 ns/op Benchmark_AP64Str Benchmark_AP64Str-12 13015425 91.21 ns/op