Mirror module / buffer + python bindings.

[drobison00]

Closes #126

[mdemoret-nv]

A few changes that we discussed earlier about relocating files. Still looking into a few of the tap ring buffer implementations.

[codecov]

Codecov Report

Merging #286 (ba5f55d) into branch-23.03 (d0c9ae6) will increase coverage by 0.38%.
The diff coverage is 87.44%.

Additional details and impacted files

@@               Coverage Diff                @@
##           branch-23.03     #286      +/-   ##
================================================
+ Coverage         72.92%   73.30%   +0.38%     
================================================
  Files               381      390       +9     
  Lines             13118    13353     +235     
  Branches            991     1006      +15     
================================================
+ Hits               9566     9789     +223     
- Misses             3552     3564      +12     

Flag	Coverage Δ
cpp	69.13% <75.88%> (+0.45%)	⬆️
py	42.21% <84.89%> (+1.16%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
cpp/mrc/include/mrc/modules/segment_modules.hpp	100.00% <ø> (ø)
cpp/mrc/include/mrc/node/operators/broadcast.hpp	87.09% <ø> (-4.43%)	⬇️
cpp/mrc/include/mrc/segment/object.hpp	51.45% <ø> (+9.40%)	⬆️
cpp/mrc/src/public/segment/definition.cpp	100.00% <ø> (ø)
cpp/mrc/src/tests/pipelines/multi_segment.cpp	100.00% <ø> (ø)
cpp/mrc/src/tests/segments/common_segments.cpp	100.00% <ø> (ø)
cpp/mrc/src/tests/test_next.cpp	87.80% <ø> (ø)
cpp/mrc/src/tests/test_pipeline.cpp	97.23% <ø> (ø)
python/mrc/_pymrc/include/pymrc/segment.hpp	90.90% <0.00%> (-9.10%)	⬇️
python/mrc/_pymrc/src/py_segment_module.cpp	75.00% <ø> (ø)
... and 28 more

... and 4 files with indirect coverage changes

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[mdemoret-nv]

Everything looks good now.

Dismissing to allow merging for release. Reviewed by mdemoret-nv

[mdemoret-nv]

/merge