move substrate-bip39 into polkadot-sdk (#3579)

Moves [substrate-bip39](https://github.com/paritytech/substrate-bip39)
into substrate. All git history is preserved. Dependencies have been
updated to use the same version as the rest of the repo.

Fixes https://github.com/paritytech/polkadot-sdk/issues/1934.

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Co-authored-by: Maciej Hirsz <maciej.hirsz@gmail.com>
Co-authored-by: Maciej Hirsz <1096222+maciejhirsz@users.noreply.github.com>
Co-authored-by: Gav Wood <i@gavwood.com>
Co-authored-by: Stanislav Tkach <stanislav.tkach@gmail.com>
Co-authored-by: Robert Habermeier <rphmeier@gmail.com>
Co-authored-by: Pierre Krieger <pierre.krieger1708@gmail.com>
Co-authored-by: Demi M. Obenour <demi@parity.io>
Co-authored-by: Bastian Köcher <git@kchr.de>
Co-authored-by: NikVolf <nikvolf@gmail.com>
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
Co-authored-by: Benjamin Kampmann <ben@gnunicorn.org>
Co-authored-by: Maciej Hirsz <hello@maciej.codes>
Co-authored-by: cheme <emericchevalier.pro@gmail.com>
Co-authored-by: adoerr <0xad@gmx.net>
Co-authored-by: Jun Jiang <jasl9187@hotmail.com>
Co-authored-by: Dan Shields <35669742+NukeManDan@users.noreply.github.com>
Co-authored-by: Michal Kucharczyk <1728078+michalkucharczyk@users.noreply.github.com>