cumulative feature

[eeliu]

• [fix] tls when manage trace
• [enh] multiple-thread api (https://github.com/pinpoint-apm/pinpoint-c-agent/pull/431[)](https://github.com/pinpoint-apm/pinpoint-c-agent/commit/fd07ca224b2d8e3b9251fece9b3a30665ab72367)
• [enh] add cumulative_time
• [ci] pulish more

[codecov]

Codecov Report

Merging #436 (821877e) into master (e776d98) will increase coverage by 0.98%.
The diff coverage is 90.38%.

@@            Coverage Diff             @@
##           master     #436      +/-   ##
==========================================
+ Coverage   74.48%   75.47%   +0.98%     
==========================================
  Files          20       20              
  Lines         921      954      +33     
==========================================
+ Hits          686      720      +34     
+ Misses        235      234       -1     

Impacted Files	Coverage Δ
common/src/ConnectionPool/TransLayer.h	66.66% <ø> (ø)
common/src/common.cpp	72.01% <85.71%> (+2.50%)	⬆️
common/src/ConnectionPool/TransLayer.cpp	81.37% <100.00%> (ø)
common/src/NodePool/TraceNode.h	100.00% <100.00%> (ø)
common/src/NodePool/PoolManager.cpp	80.48% <0.00%> (+2.43%)	⬆️

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