Recursively add includes to dependencies

[papachristoumarios]

Example:

// foo.h
#include "boo.h"
#include <stdio.h>

int main() {
	printf("%d", f(3));
}

// boo.h
#include "hoo.h"

// hoo.h
int f(int x);

// hoo.h
int f(int x) {
    return x;
}

Would result in calling cflow with hoo.h boo.h foo.c

[papachristoumarios]

Closed. Added -d flag to determine the depth of search for the BFS. If omitted the program does a full BFS