[ISSUE #894](feat): add filter hooks in consumer.

[superhx]

Add filter hooks to consumer

Developer can use filter hooks to filter pulled messages before message processing.

close #894

[codecov-commenter]

Codecov Report

Merging #891 (ed62cf0) into master (ae76839) will decrease coverage by 0.03%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master     #891      +/-   ##
==========================================
- Coverage   23.81%   23.77%   -0.04%     
==========================================
  Files          52       52              
  Lines        7105     7116      +11     
==========================================
  Hits         1692     1692              
- Misses       5187     5198      +11     
  Partials      226      226              

Impacted Files	Coverage Δ
consumer/consumer.go	17.61% <0.00%> (-0.24%)	⬇️
consumer/option.go	20.33% <0.00%> (-0.54%)	⬇️

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[ShannonDing]

I am not sure what scenario this feature is used in. First of all, I think we can use tags to filter messages directly. If some messages do not need to be processed by the business, we can also directly return success when consuming.

[superhx]

scenario this featu

1. Java SDK has the FilterMessageHook
2. Don't want send success consumed trace when message is filtered。

[lizhanhui]

It makes sense to have a business tier filter mechanism.

[lizhanhui]

@superhx One more thing, you may request this feature here too, where the next major version is being built.