SigmaProtocol/cmz: A crate to automatically create protocols that use CMZ14 or µCMZ credentials, by specifying an extremely compact description of the protocol. @ 2cc1771ea82eff0ebcb48d11234b7fa1d00c8294

Ian Goldberg 2cc1771ea8 prepare() and handle() now take a session id as an additional argument		7 mesiacov pred
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basic.rs	2cc1771ea8 prepare() and handle() now take a session id as an additional argument	7 mesiacov pred
submodule.rs	2cc1771ea8 prepare() and handle() now take a session id as an additional argument	7 mesiacov pred
wallet.rs	2cc1771ea8 prepare() and handle() now take a session id as an additional argument	7 mesiacov pred