[ISSUE #407] feat: reuse bytes.Buffer

[xujianhai666]

• use sync.pool of bytes.Buffer instead of new

Closes #407

[ShannonDing]

primitive/message.go:367:15: undefined: createMessageId

[codecov-io]

Codecov Report

Merging #408 into native will decrease coverage by 0.12%.
The diff coverage is 93.33%.

@@            Coverage Diff             @@
##           native     #408      +/-   ##
==========================================
- Coverage   25.19%   25.06%   -0.13%     
==========================================
  Files          47       48       +1     
  Lines        5474     5486      +12     
==========================================
- Hits         1379     1375       -4     
- Misses       3907     3924      +17     
+ Partials      188      187       -1

Impacted Files	Coverage Δ
primitive/pool.go	58.82% <100%> (+46.32%)	⬆️
primitive/message.go	25.31% <83.33%> (+0.31%)	⬆️
consumer/consumer.go	16.25% <0%> (-1.72%)	⬇️
consumer/push_consumer.go	12.41% <0%> (-0.4%)	⬇️
internal/client.go	0.23% <0%> (-0.01%)	⬇️
primitive/errors.go	0% <0%> (ø)
internal/route.go	9.87% <0%> (+0.06%)	⬆️

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