[feature] C API

[Freed-Wu]

Currently, cppinsights is only one binary program.

Is it possible to provide a header file and a library?

TIA!

[Freed-Wu]

I notice some options belong to InsightsOptions, however, some option like --use-libc++ doesn't belong to InsightsOptions. Why not collect them to InsightsOptions together?

[Freed-Wu]

The API may be char *cppinsights(argc, argv), use cppinsights() to get a string of result?