chore(c++): add cmake option GRAPHAR_ENABLE_SANITIZER

[Sober7135]

Reason for this PR

#817

What changes are included in this PR?

Add a option to CMake and add corresponding docs

Are these changes tested?

Yes

Are there any user-facing changes?

No

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.19%. Comparing base (bac3630) to head (b22c890).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #818      +/-   ##
============================================
+ Coverage     77.17%   77.19%   +0.02%     
  Complexity      607      607              
============================================
  Files            84       85       +1     
  Lines          8854     8853       -1     
  Branches       1043     1043              
============================================
+ Hits           6833     6834       +1     
+ Misses         1781     1779       -2     
  Partials        240      240              

Flag	Coverage Δ
cpp	71.52% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[yangxk1]

LGTM~