build: dynamic link gflags/glog

[aceforeverd]

thirdparty source improves:

• include farmhash in source directly
• dyanmic link gflags/glog
• upgrade gflags/glog to latest version

fixes #3407

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: -38.41% ⚠️

Comparison is base (e2dd0a5) 75.72% compared to head (694ad7b) 37.32%.
Report is 3 commits behind head on main.

Additional details and impacted files

@@              Coverage Diff              @@
##               main    #3439       +/-   ##
=============================================
- Coverage     75.72%   37.32%   -38.41%     
  Complexity      414      414               
=============================================
  Files           703      178      -525     
  Lines        127271    10308   -116963     
  Branches       1206     1206               
=============================================
- Hits          96371     3847    -92524     
+ Misses        30659     6220    -24439     
  Partials        241      241               

see 525 files with indirect coverage changes

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[aceforeverd]

fixed by #3778