Fix membership inconsistency caused by clean_replace_member_task

[yuwmao]

• Add on_clean_replace_member_task callback
• The current get_replication_status only provides config of peer itself on the follower side. So, add a get_replication_quorum function for the upper layer to correct the membership.

HO PR: eBay/HomeObject#386

[codecov-commenter]

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Codecov Report

❌ Patch coverage is 0% with 29 lines in your changes missing coverage. Please review.
✅ Project coverage is 48.21%. Comparing base (1a0cef8) to head (d91eb64).
⚠️ Report is 309 commits behind head on master.

Files with missing lines	Patch %	Lines
src/lib/replication/repl_dev/raft_repl_dev.cpp	0.00%	27 Missing ⚠️
src/lib/replication/repl_dev/solo_repl_dev.h	0.00%	2 Missing ⚠️
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Additional details and impacted files

@@            Coverage Diff             @@
##           master     #856      +/-   ##
==========================================
- Coverage   56.51%   48.21%   -8.30%     
==========================================
  Files         108      110       +2     
  Lines       10300    12842    +2542     
  Branches     1402     6164    +4762     
==========================================
+ Hits         5821     6192     +371     
+ Misses       3894     2564    -1330     
- Partials      585     4086    +3501     

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[Besroy]

lgtm

[JacksonYao287]

LG