Different Eventloops on windows can now be explored

[Vizonex]

What do these changes do?

These Changes unlock the ability to use different event-loops with Windows in the future. This will allow users to explore other ideas and workarounds to maybe even Subclass the ProactorEventLoop to get no-event threads instances to work. Winloop no longer needs to be imported to aiodns thus saving a bit of time with checking and configuring. I moved it to a function mainly to be simulated but I can always move these parts back to the make_channel function if needed.

Are there changes in behavior for the user?

Users will no longer be locked to using winloop or the SelectorEventLoop if a windows operating system is being used. Importing winloop to aiodns inside the dns resolver no longer needs to be done. I changed the wording of the error message. Now it says it requires any eventloop but the ProactorEventLoop aiodns cannot use ProactorEventLoop on Windows if event-threads cant be utilized implying that winloop or the SelectorEventLoop or Any Custom EventLoops instead.

Related issue number

Checklist

• I think the code is well written
• Unit tests for the changes exist
• Documentation reflects the changes

[Vizonex]

whoops I did not take ProactorEventLoop attribute into account. When I get back from other activities I will fix this immediately.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.01%. Comparing base (ad96d79) to head (8dcdaa3).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #178      +/-   ##
==========================================
- Coverage   97.25%   97.01%   -0.24%     
==========================================
  Files           3        3              
  Lines         547      503      -44     
  Branches       34       31       -3     
==========================================
- Hits          532      488      -44     
  Misses          8        8              
  Partials        7        7              

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[Vizonex]

Thank goodness I got all of that done. That took longer than it needed to to solve.

[bdraco]

Thanks. Once we sort out #175 we can move this forward