Relays with badexit flag are not counted as being in the consensus

When checking relays for being in the consensus in by-fp.py we have

    if fp in fps:
        if Flag.BADEXIT in desc.flags:
            print("  [-] (BADEXIT) %s" % (fp))
        else:
            found[fp] = desc

which is a bit weird as having the badexit flag does not necessarily mean you are not in the consensus. I think we should treat the badexit flag as any other flag in that script and just list it like the other ones and count badexited relays properly consensus-wise.