public package initialisation of sdk to npmjs.com

this is a pre-release candidate aimed to publish @0xzerolabs/sdk to npmjs.com in preparation for the first alpha release candidate

What's Changed

• feat: new push by @defiboyszn in #1
• feat: new changes by @defiboyszn in #2

Full Changelog: https://github.com/0xZeroLabs/zero-mono/commits/pre-release