MACI 1.0.x integration

This version of libcream allows working with zkcream integrated with MACI 1.0.2 regarding this PR.

MACI integration

• Added createMessage() to create command , sign command and create message to publish to MACI contract.

Updated modules

0.0.4

Updated to 0.0.4

Initial release for npm package

• added prepare command

0.0.1

Added prepare npm script