Improvements to Shamir Secret Sharing to verify the integrity of shares issued by a central dealer.

Chelsea H. Komlo 720a16f144 initial commit %!s(int64=4) %!d(string=hai) anos
src 720a16f144 initial commit %!s(int64=4) %!d(string=hai) anos
Cargo.lock 720a16f144 initial commit %!s(int64=4) %!d(string=hai) anos
Cargo.toml 720a16f144 initial commit %!s(int64=4) %!d(string=hai) anos