SwiftUI storage system

• SwiftUI storage system
• swiftui branch
• Refactor project structure (added 'Model' and 'Views' directories)
• Resources directory with sample patients.json file
• Sample file (patients.json) is copied to the user documents folder on first run
• Features:
  • Patient data entry
  • Hearing loss, SAL and ELI indices calculations
  • Save patients data in json file
  • Languages: English and Spanish
  • Search and print report of current patient

Dual storage system

• Dual storage system: CoreData and SwiftUI (toggle between them)
• main branch
• Refactor project structure (added 'Model' and 'Views' directories)
• Resources directory with sample patients.json and DataModel.sqlite files
• Sample files (patients.json and DataModel.sqlite) are copied to the user documents folder on first run
• Features:
  • Patient data entry
  • Hearing loss, SAL and ELI indices calculations
  • Save patients data in json file or SQLite database
  • Languages: English and Spanish
  • Search and print report of current patient