Support To/FromChannel

[BooleanCat]

Please provide a brief description of the change.

Allow for a channel to be created from an iter.Seq and vice versa.

Which issue does this change relate to?

None.

Contribution checklist.

• I have read and understood the CONTRIBUTING guidelines
• My code is formatted (make check)
• I have run tests (make test)
• All commits in my PR conform to the commit hygiene section
• I have added relevant tests
• I have not added any dependencies

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (2647a46) to head (36c4bc8).

Additional details and impacted files

@@            Coverage Diff            @@
##                v2      #109   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           13        14    +1     
  Lines          271       285   +14     
=========================================
+ Hits           271       285   +14     

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