Version 0.3.0: Add Sun observer angle (or "solar probe Earth") calculation, fix barycentric nutation calculations, add `latest()`

What's Changed

• Update rfd requirement from 0.12.1 to 0.13.0 by @dependabot in #172
• Update parquet requirement from 49.0.0 to 50.0.0 by @dependabot in #171
• Update egui-toast requirement from 0.10.2 to 0.11.0 by @dependabot in #177
• Add latest() for MetaAlmanac by @ChristopherRabotin in #181
• Update memmap2 requirement from =0.9.3 to =0.9.4 by @dependabot in #184
• Fix rotations when nutation angles are involved by @ChristopherRabotin in #182
• Moon frame simplifications + add loading from MetaFile into Almanac by @ChristopherRabotin in #186
• Sun observer angle calculation (or solar probe angle) by @ChristopherRabotin in #188

Full Changelog: 0.2.1...0.3.0