Feat: Expose full context information via API

[wzj-zz]

Thank you for this great plugin! I'd like to request an API to expose full context information

1. All collected context information (including visible range near cursor)

int main(void) {
  if() { //Invisible
    if() { //Invisible
      if() { //visible
        [cursor pos]
      }
    }
  }
}

that can get context like:

int main(void) {
     if() {
      if() {
        if() { //visible

This would make it easier to export context for analyzing trigger conditions of specific code.