Support generation of Java class with symbols for resources supplied with bundle (like images)

[ruspl-afed]

may look similar to https://developer.android.com/reference/android/R and help to address the following issues:

• make it easier to reuse resources (like images) from upstream bundles to reduce duplication of similar/equal resources
• promote resources to an API level and utilize all the API rules and tooling we already have

Feel free to convert this to discussion @HannesWell @akurtakov