[PR] Add TTVs to the chest item whitelist

[Studenterhue]

While I don't think my opinion counts for this, I say "No" as well. Like Drago explained, implanting a TTV in your chest completely nullifies TTV's main disadvantage of being obvious. While the idea of having to lose organs is an interesting framework on its own, I don't think it properly addresses that issue; chest TTVs would still be harder to detect and thus counter. Something like vampirate's idea to make them trip scanners would be more in tune to what I'm looking for.