aslgen unit tests

tools/app_metadata_bundles/Android.bp

...bundles/src/lib/java/com/android/asllib/AslConverter.java

...a/com/android/asllib/marshallable/AndroidSafetyLabel.java

...ndroid/asllib/marshallable/AndroidSafetyLabelFactory.java

...src/lib/java/com/android/asllib/marshallable/AppInfo.java

.../java/com/android/asllib/marshallable/AppInfoFactory.java

...java/com/android/asllib/marshallable/AslMarshallable.java

...m/android/asllib/marshallable/AslMarshallableFactory.java

...ib/java/com/android/asllib/marshallable/DataCategory.java

.../com/android/asllib/marshallable/DataCategoryFactory.java

.../lib/java/com/android/asllib/marshallable/DataLabels.java

...va/com/android/asllib/marshallable/DataLabelsFactory.java

...rc/lib/java/com/android/asllib/marshallable/DataType.java

...java/com/android/asllib/marshallable/DataTypeFactory.java

...b/java/com/android/asllib/marshallable/DeveloperInfo.java

...com/android/asllib/marshallable/DeveloperInfoFactory.java

...ib/java/com/android/asllib/marshallable/SafetyLabels.java

.../com/android/asllib/marshallable/SafetyLabelsFactory.java

...com/android/asllib/marshallable/SystemAppSafetyLabel.java

...roid/asllib/marshallable/SystemAppSafetyLabelFactory.java