Benchmarks: micro benchmarks - add nvbandwidth benchmark

[polarG]

Description
Add nvbandwidth benchmark

nvbindwith output example:
nvbandwidth Version: v0.6
Built from Git version:

CUDA Runtime Version: 12040
CUDA Driver Version: 12040
Driver Version: 550.54.15

Device 0: NVIDIA XXXXXX

Running host_to_device_memcpy_ce.
memcpy CE CPU(row) -> GPU(column) bandwidth (GB/s)
        0         1
0    337.55    2142.4
1    2142.4    337.55

SUM host_to_device_memcpy_ce 337.55

Running device_to_host_memcpy_ce.
memcpy CE CPU(row) <- GPU(column) bandwidth (GB/s)
        0         1        2
0    295.23     241.2    254.0
1    241.2      295.2    254.0

SUM device_to_host_memcpy_ce 295.23

Waived:
Waived:
Waived:
Running host_to_device_bidirectional_memcpy_ce.
memcpy CE CPU(row) <-> GPU(column) bandwidth (GB/s)
        0
0    160.02
Waived:

Benchmark results example:

host_to_device_memcpy_ce_bandwidth_cpu0_gpu0: 337.55
host_to_device_memcpy_ce_bandwidth_cpu0_gpu1: 2142.4
host_to_device_memcpy_ce_bandwidth_cpu1_gpu0: 2142.4
host_to_device_memcpy_ce_bandwidth_cpu1_gpu1: 337.55
host_to_device_memcpy_ce_sum_bandwidth: 4859.9

[codecov]

Codecov Report

Attention: Patch coverage is 91.20879% with 8 lines in your changes missing coverage. Please review.

Project coverage is 85.75%. Comparing base (c8c52eb) to head (fd87b33).

Files with missing lines	Patch %	Lines
...erbench/benchmarks/micro_benchmarks/nvbandwidth.py	91.11%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #669      +/-   ##
==========================================
+ Coverage   85.68%   85.75%   +0.07%     
==========================================
  Files          97       98       +1     
  Lines        6952     7043      +91     
==========================================
+ Hits         5957     6040      +83     
- Misses        995     1003       +8     

Flag	Coverage Δ
cpu-python3.7-unit-test	71.81% <91.20%> (+0.25%)	⬆️

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