v0.2.0

What's Changed

• Add Delete and Has methods to SparseMerkleTree by @tzdybal in #12
• Fix typos and exported function docstrings by @adlerjohn in #15
• Set proof's NonMembershipLeafData to nil for membership proofs by @adlerjohn in #17
• Fix non-idiomatic error check by @adlerjohn in #18
• Migrate to GitHub actions by @tzdybal in #23
• Fix proof direction and key bit order by @adlerjohn in #22
• Modernize error handling by @tzdybal in #21
• Make branches updatable with sibling node value by @adlerjohn in #27
• Fix CI by @adlerjohn in #32
• Remove arm64 from test CI by @adlerjohn in #33

Full Changelog: v0.1.1...v0.2.0