refactor(consensus): consensus takes a generic network receiver

[matan-starkware]

Pull Request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no API changes)
• Build-related changes
• Documentation content changes
• Other (please describe):

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this introduce a breaking change?

• Yes
• No

Other information

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This change is 

[matan-starkware]

• refactor(consensus): minor refactor of the manager #208
• refactor(consensus): create manager which encapsulates messages cached between heights #200
• refactor(consensus): consensus takes a generic network receiver #112 👈
• feat(consensus): test receiver to mock network failures during simulations #166
• main

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[ShahakShama]

Reviewed 1 of 2 files at r1, all commit messages.
Reviewable status: 1 of 2 files reviewed, 1 unresolved discussion (waiting on @asmaastarkware and @matan-starkware)

a discussion (no related file):
We plan to change those channels to Box<dyn Sink/Stream>, and then this PR will be unnecessary
@eitanm-starkware could you do that on Sunday?

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.72%. Comparing base (d166e52) to head (240bd76).

Additional details and impacted files

@@                            Coverage Diff                            @@
##           matan/consensus/m3/test_network_receiver     #112   +/-   ##
=========================================================================
  Coverage                                     76.72%   76.72%           
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  Files                                           311      311           
  Lines                                         34345    34345           
  Branches                                      34345    34345           
=========================================================================
  Hits                                          26352    26352           
+ Misses                                         5703     5702    -1     
- Partials                                       2290     2291    +1     

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[matan-starkware]

Reviewable status: 0 of 2 files reviewed, 1 unresolved discussion (waiting on @asmaastarkware, @eitanm-starkware, and @ShahakShama)

a discussion (no related file):

Previously, ShahakShama wrote…

We plan to change those channels to Box<dyn Sink/Stream>, and then this PR will be unnecessary
@eitanm-starkware could you do that on Sunday?

As discussed your change is nothappening. Reviving.

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[asmaastarkware]

Reviewed 2 of 2 files at r2, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @eitanm-starkware and @ShahakShama)

[ShahakShama]

Reviewed all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @eitanm-starkware)