llcppg: interface & implement file convert

[luoliwoshang]

#176

• common prefix root
• config.Mix to determine Current Package's header file is not independent in folder ,like /usr/include/sqlite3.h , /usr/include/stdio.h

llcppsymg

• only current package gen llcppg.symb.json

gogensig

• interface.h -> coresponding_interface.go
• [implement.h,implement2.h] -> libname_autogen.go

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.94%. Comparing base (0c3f016) to head (7b87f18).
Report is 20 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #180      +/-   ##
==========================================
+ Coverage   96.84%   97.94%   +1.10%     
==========================================
  Files          17       17              
  Lines        2379     2388       +9     
==========================================
+ Hits         2304     2339      +35     
+ Misses         63       33      -30     
- Partials       12       16       +4     

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