Make velox_hive_connector_test file format agnostic

[yingsu00]

Description

The velox_hive_connector_test and IcebergReadTest are on DWRF files only. We need to extract the file format and use it as a parameter so that other file formats are covered.

[ethanyzhang]

@minhancao is going to take a look cc @yingsu00

[yingsu00]

The velox/exec/tests/utils/HiveConnectorTestBase.h has the following lines:

 private:
  const std::string filePath_;
  dwio::common::FileFormat fileFormat_{dwio::common::FileFormat::DWRF};

We want to make the file format as an option to support both DWRF and Parquet

[minhancao]

@svm1