fix(interactive): Support fusion of scan+count in GIE Runtime for optimization

[BingqingLyu]

What do these changes do?

As titled. Specifically,

1. ir-runtime: support query for fusion of source+count
2. ReadGraph interface: provide scan_count() related apis, and implement for different storages.

Related issue number

#1854

[codecov-commenter]

Codecov Report

Merging #3233 (6d4b009) into main (52cac82) will decrease coverage by 24.22%.
Report is 4 commits behind head on main.
The diff coverage is n/a.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #3233       +/-   ##
===========================================
- Coverage   66.28%   42.06%   -24.22%     
===========================================
  Files         101      101               
  Lines       10987    10987               
===========================================
- Hits         7283     4622     -2661     
- Misses       3704     6365     +2661     

see 67 files with indirect coverage changes

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update fb27016...6d4b009. Read the comment docs.