Introduce Thrust benchmarks

[gevtushenko]

Description

closes #473

This PR:

• Ports existing Thrust benchmarks into CCCL repository
• Extends Thrust benchmarks to work with any given device system (CUDA, CPP, OMP, etc.)
• Adds optional tests of benchmark data generators (can be enabled with CUB_ENABLE_NVBENCH_HELPER_TESTS)
• Refactors benchmark data generators API
• Makes benchmark data generators heterogeneous
• Abstracts CUB tuning infrastructure from CUB and associates it with CCCL instead

To run Thrust benchmarks, it's sufficient to:

$: cmake -DCCCL_ENABLE_THRUST=YES \ 
      -DCCCL_ENABLE_CUB=YES \
      -DCCCL_ENABLE_LIBCUDACXX=NO \
      -DCMAKE_BUILD_TYPE=Release \
      -DCMAKE_CUDA_ARCHITECTURES=89 \
      -DCCCL_ENABLE_BENCHMARKS=YES .. 
$: ../benchmarks/scripts/run.py -R 'thrust.*'
&&&& RUNNING bench
 ctk:  12.2.140
cccl:  monorepo-309-g9ce36e3b7
&&&& PERF thrust_bench_adjacent_difference_basic_base_T_ct__I8___Elements_pow2__16 1.0048000149254221e-05 -sec
&&&& PERF thrust_bench_adjacent_difference_basic_base_T_ct__I8___Elements_pow2__20 0.00013096000475343317 -sec
&&&& PERF thrust_bench_adjacent_difference_basic_base_T_ct__I8___Elements_pow2__24 0.00017212801321875304 -sec
&&&& PERF thrust_bench_adjacent_difference_basic_base_T_ct__I8___Elements_pow2__28 0.0007995199994184077 -sec
&&&& PERF thrust_bench_adjacent_difference_basic_base_T_ct__I16___Elements_pow2__16 1.0239999937766697e-05 -sec
&&&& PERF thrust_bench_adjacent_difference_basic_base_T_ct__I16___Elements_pow2__20 0.0001341439929092303 -sec
&&&& PERF thrust_bench_adjacent_difference_basic_base_T_ct__I16___Elements_pow2__24 0.00021606399968732148 -sec
&&&& PERF thrust_bench_adjacent_difference_basic_base_T_ct__I16___Elements_pow2__28 0.0014510079054161906 -sec

Thrust multiconfig setup is used to produce benchmarks for different device systems.

Checklist

• New or existing tests cover these changes.
• The documentation is up to date with these changes.

[elstehle]

Thanks for the great work! That's a awesome step up for our benchmarking infrastructure!

Just a few, mostly minor, comments/suggestions.