Lawrence Forman f4709ed1cb
EP: Add LibSignature library (#21)
* `@0x/contracts-zero-ex`: Add `LibSignature` library

* `@0x/contracts-zero-ex`: Update package.json scripts

Co-authored-by: Lawrence Forman <me@merklejerk.com>
2020-10-29 17:47:17 -04:00
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2020-10-29 17:47:17 -04:00