MRC Rename

[ryanolson]

Closes #222

[mdemoret-nv]

I have looked over this PR, and made adjustments where necessary. Looks good now

[codecov]

Codecov Report

Base: 28.37% // Head: 28.35% // Decreases project coverage by -0.02% ⚠️

Coverage data is based on head (d40ede9) compared to base (9fbd4a5).
Patch coverage: 2.85% of modified lines in pull request are covered.

Additional details and impacted files

@@               Coverage Diff                @@
##           branch-23.01     #221      +/-   ##
================================================
- Coverage         28.37%   28.35%   -0.03%     
================================================
  Files               363      364       +1     
  Lines             10121    10129       +8     
  Branches           4783     4786       +3     
================================================
  Hits               2872     2872              
- Misses             4969     4977       +8     
  Partials           2280     2280              

Impacted Files	Coverage Δ
include/mrc/benchmarking/segment_watcher.hpp	52.63% <ø> (ø)
include/mrc/benchmarking/trace_statistics.hpp	100.00% <ø> (ø)
include/mrc/benchmarking/tracer.hpp	78.00% <ø> (ø)
include/mrc/channel/buffered_channel.hpp	53.57% <ø> (ø)
include/mrc/channel/channel.hpp	81.48% <ø> (ø)
include/mrc/channel/egress.hpp	100.00% <ø> (ø)
include/mrc/channel/ingress.hpp	100.00% <ø> (ø)
include/mrc/channel/null_channel.hpp	39.13% <ø> (ø)
include/mrc/channel/recent_channel.hpp	29.78% <ø> (ø)
include/mrc/codable/api.hpp	0.00% <ø> (ø)
... and 205 more

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[mdemoret-nv]

@gpucibot merge