v0.5.0

Breaking changes

• Added AsLiquidValue interface to provide a scalar value from objects used for comparisons
• Added Hidden and Cache attributes for drop methods
• Rewritten and improved drops metadata extraction
• Improved RenderContext values caching

What's Changed

• added cacheable methods to drop by @cappuc in #12
• extract drop metadata only once per drop class by @cappuc in #13

Full Changelog: v0.4.2...v0.5.0