Deprecate methods relying on Hadoop classes when alternatives using more generic Parquet interfaces are available

Deprecate methods relying on Hadoop classes when alternatives using Parquet interfaces are available. This would allow for fully decoupling from Hadoop for simple read/write (and potentially rewrite) operations in the future, where we are now only on track to decouple from hadoop-client-runtime in the near future.

We could decide to still keep Hadoop methods available through convenience classes in their own Hadooped module, but for core read/write logic to be available without forcing users into the Hadoop dependency, we will need to fully strip the core readers and writers of these references.