Update unicode additional files

* Added additions/emoji-sequences.txt for additional sequences.
* Added wrestler and handshake emojis with skin tone modifiers
to this file.
* Updated additions/emoji-zwj-sequences.txt to include wrestler emojis

Test: make fontchain_lint

Bug: 37520224
Bug: 37169477
Bug: 37212127
Change-Id: I24c18284ed8c9aeb06e5df0b6ba46551f7764489