SigmaProtocol/sigma-compiler: Crate for automatically generating code for sigma zero-knowledge proof protocols of more complex statements than are supported by the sigma-proofs crate. The statements given to this crate are compiled into statements about linear combinations of points, and transformed into the sigma-proofs API. @ b5fc2df4c9baf635d07d6999274f08a524e11362

Ian Goldberg b5fc2df4c9 prove() and verify() now take a session id as an additional argument		7 mesiacov pred
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basic.rs	b5fc2df4c9 prove() and verify() now take a session id as an additional argument	7 mesiacov pred
pubscalars.rs	b5fc2df4c9 prove() and verify() now take a session id as an additional argument	7 mesiacov pred
range.rs	b5fc2df4c9 prove() and verify() now take a session id as an additional argument	7 mesiacov pred