Export ApiSpec

[murtycodes]

I tried to create a simple branch and PR to export the apiSpec variable so i can just import it from this module, but access denied. I could very well just copy over the apidoc to my own repo, but why bother since i am already using this SDK for the interface and types. Could you give access to public to contribute?

https://github.com/fboucquez/rosetta-sdk-typescript/blob/main/src/server/RosettaServer.ts#L36