Add ORC, Avro and Parquet to `parse_type` options for h2o.importFile in R
The docstring for h2o.uploadFile/importFile is missing the three options: "ORC", "Avro" and "Parquet"
Notes to be included in the docstring:
`h2o.uploadFile()` doesn't support Parquet, Parquet needs random access to data
ORC is available only if H2O is running as a Hadoop job.