Illallangi-rdf

Feat

- **aircraft**: added
- **manufacturer**: added

Fix

- **partialdate-converter**: added null handling
- **client**: added caching of rdf file

Feat

- **all**: Implemented attrs and cattrs

Feat

- **airline**: added dominant_color attribute

Fix

- **AirlineClient**: uppercase IATAs consistently

Feat

- **airline**: added alliance
- **EducationAdapter**: added

Refactor

- **all**: moved environment variable configuration out of client
- **ResidentialAdapter**: renamed from ResidentialHistoryAdapter
- **rdf-tools**: refactored output

Fix

- **residentialhistoryadapter**: added required fields
- **libraries**: added diffsync

Fix

- **models**: lowercased output fields