feat(cxx sdk): support multi-thread, fix package logic and quickstart

[vagetablechicken]

closes #3225

• cxx lib is big, ~2G, so only cicd workflow build it, and macos is unsupported(see error in workflow file)
• add a make option INSTALL_CXXSDK, if not, won't install include/ and lib/

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: -0.01 ⚠️

Comparison is base (53724ed) 75.65% compared to head (4cd1684) 75.65%.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #3334      +/-   ##
============================================
- Coverage     75.65%   75.65%   -0.01%     
  Complexity      414      414              
============================================
  Files           692      692              
  Lines        125819   125963     +144     
  Branches       1189     1189              
============================================
+ Hits          95189    95296     +107     
- Misses        30389    30426      +37     
  Partials        241      241              

Impacted Files	Coverage Δ
src/sdk/openmldb_api.cc	0.00% <0.00%> (ø)
src/sdk/openmldb_api.h	0.00% <0.00%> (ø)

... and 22 files with indirect coverage changes

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