v0.3.1

What's Changed

• feat: currency verification by @JordyRo1 in #38
• feat: currency id verification by @JordyRo1 in #39
• refractor: LegacyMap by @JordyRo1 in #44
• remove unused constants by @JordyRo1 in #43
• feat: timestamp future check by @JordyRo1 in #42
• fix: new timestamp cannot be zero verification by @JordyRo1 in #41
• Audit/entry store packing verification by @JordyRo1 in #40

Full Changelog: v0.3.0...v0.3.1