Make TMW base sprite genderless

Created by: wushin

to-do

• +1 on all the to and from replaces that involve hair
  • -20 should replaced to -1 though
• for every hair replace that has a from but no to it will need to have a to="-1" or else the head is invisible (lack of to implies 0 so unequip the head)
• use a short tank top

All Done! 👍

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now you might want to:

• fix xml errors (xmllint)
• rebase the pr
• test the barber, mirror, scissors and shock sweet

optional (does not need to be in _this_ release) - [ ] make `M`, `F` and `N` variation of the `Tritan` (fins) heads - [ ] make `M`, `F` and `N` variation of the `Ifriton` (horns) heads