v0.2.0
Restructure code to expose the internal hasher: (#19) * restructure code to expose the internal hasher: - expose NmtHasher API s.t. it can be used to construct and use NMT Hashsers externally (e.g. for IPLD multihashers) - Add two functions Sha256Namespace8FlaggedLeaf, Sha256Namespace8FlaggedInner whose signature matches regular hash functions that simplify the above even further * fix bug/typo and minor doc improvements * Some sanity checks as tests