v0.4.0

• Support for null bitmaps, union arrays, duration arrays, dictionary-encoded arrays, map arrays.
• Set copy to true by default. To create zero-copy views, pass copy=false.
• Bump apache-arrow peer dependency to v15.
• Add parseTable helper in #87
• Add parseSchema by @kylebarron in #72
• Fix passing down copy when parsing children by @kylebarron in #44
• Automated publishing via CI by @kylebarron in #92
• memory management doc by @kylebarron in #98

Full Changelog: v0.3.0...v0.4.0