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It has the same properites as Rabin.

Benchmark results:
```
name       time/op
Buzhash-4    14.3ms ± 7%
Rabin-4      94.1ms ± 3%
Default-4    1.74ms ± 7%

name       speed
Buzhash-4  1.18GB/s ± 7%
Rabin-4     178MB/s ± 3%
Default-4  9.63GB/s ± 6%

name       alloc/op
Buzhash-4    14.0kB ±48%
Rabin-4      19.2MB ± 0%
Default-4      474B ± 6%

name       allocs/op
Buzhash-4      1.00 ± 0%
Rabin-4         196 ±12%
Default-4      2.00 ± 0%
```

License: MIT
Signed-off-by: Jakub Sztandera <kubuxu@protocol.ai>

Add benchmarks

License: MIT
Signed-off-by: Jakub Sztandera <kubuxu@protocol.ai>

License: MIT
Signed-off-by: Jakub Sztandera <kubuxu@protocol.ai>

add gomod support // tag v0.0.1.

License: MIT
Signed-off-by: Jakub Sztandera <kubuxu@protonmail.ch>

fix size-0 chunker bug

switch to go-buffer-pool

It has a nicer interface and we don't even need the rest of the msgio

Prereq for: https://github.com/libp2p/go-msgio/pull/9

gx publish 0.0.12

return err when rabin min less than 16

In general, it's easier for people to parse positive statements.