Add TPCDS connector in Velox

[aditi-pandit]

Discussed in #8994

^{Originally posted by majetideepak March 6, 2024}
We should implement a TPCDS connector in Velox to generate data and run benchmarks against it.
The implementation stages would be similar to the TPCH connector.
TPCDS dsdgen can also generate delta files. This can be used to test the Lakehouse formats such as Iceberg.

[aditi-pandit]

@pdabre12