Add codegen support for DimensionValue for components (#35953)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/35953

DimensionValue is a reserved prop type that can be a number or string (such as '50%'). On Java, it will get converted to a YogaValue (converter added to this diff); on C++ it will get converted to a YGValue (converter already exists as it's used in Fabric).

Changelog:
[Internal][Added] - Add codegen support for DimensionValue for components

Reviewed By: cipolleschi

Differential Revision: D42650799

fbshipit-source-id: 1d2bc30bbd93837dedbbb4c74f814963c8140957

packages/react-native-codegen/src/generators/components/GeneratePropsJavaDelegate.js

@@ -128,6 +128,8 @@ function getJavaValueForProp(
           return '(ReadableMap) value';
         case 'EdgeInsetsPrimitive':
           return '(ReadableMap) value';
+        case 'DimensionPrimitive':
+          return 'DimensionPropConverter.getDimension(value)';
         default:
           (typeAnnotation.name: empty);
           throw new Error('Received unknown ReservedPropTypeAnnotation');