StringResourceModel changed to fluent API

Most of the StringResourceModel constructors were removed in favor of a new fluent API. "For ease of migration you can use the StringResourceModelMigration class to alleviate the pain of figuring out the right way to construct your instance using the new fluent API. Change the new StringResourceModel(...) constructor call to StringResourceModelMigration.of(...), and then perform the Inline Method refactoring of your IDE."

Impact: large. Easy change, but the code base contains 342 StringResourceModels...