[FEA]: Improve cudax HLL

[srinivasyadav18]

#6666 Introduces H.L.L, migrated from cuCollections.

However, there are many more minor issues needs to covered.
This Issue tracks the remaining issues

• Add extensive testing to test all the APIs for hyperloglog_impl
• Clean up testing file/director structure for cuco in cudax
• Add benchmarks
• Add examples
• Optimize bias and raw estimate global array's to use __constant__ or __grid_constant__ for device compilations
• Rebase with latest update's from cuCollections (Align HyperLogLog add() bit handling with Spark cuCollections#792)