patch: Enhance DuitDataSource with new methods (#54)

* feat: Enhance DuitDataSource with new date and time handling methods

- Added methods to retrieve and parse DateTime, DatePickerEntryMode, DatePickerMode, Locale, TimeOfDay, and TimePickerEntryMode from JSON.
- Implemented lookup tables for DatePickerEntryMode, DatePickerMode, TimePickerEntryMode, and Orientation.
- Updated tests to cover new functionality and ensure correct parsing and default value handling.
- Introduced locale and orientation properties in FlutterPropertyKeys for better configuration management.

* feat: Enhance DuitDataSource with new properties and methods for scroll behavior, multitouch drag strategy, target platform, and drag devices

- Added methods to retrieve and parse ScrollBehavior, MultitouchDragStrategy, TargetPlatform, and drag devices from JSON.
- Introduced lookup tables for PointerDeviceKind and MultitouchDragStrategy.
- Updated FlutterPropertyKeys to include new keys for scroll behavior, multitouch drag strategy, platform, drag devices, and pointer axis modifiers.
- Enhanced tests to cover new functionality and ensure correct parsing and default value handling.

* Lint fixes

* wip

* feat: Add iconData method to DuitDataSource for enhanced icon handling

- Introduced iconData method to retrieve and parse IconData from JSON, supporting direct IconData, string identifiers, and map structures.
- Added a new generated icon lookup table for efficient IconData resolution.
- Updated tests to validate the new iconData functionality and ensure correct behavior across various input scenarios.
- Created a script to generate the icon lookup table from Flutter's material/icons.dart.

* wip

Author: lesleysin

Makefile

@@ -17,4 +17,7 @@ lint:
 .PHONY: format
 
 format:
-	fvm dart format .
+	fvm dart format .
+
+gen icons:
+	fvm dart run tool/generate_icon_lookup.dart