Add ensure_newline_before_comments to black profile

[StephenBrown2]

Since #1000 was merged to address black compatibility, best include it in the profile.

[codecov-io]

Codecov Report

Merging #1077 into develop will increase coverage by 0.05%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop    #1077      +/-   ##
===========================================
+ Coverage    84.61%   84.67%   +0.05%     
===========================================
  Files           40       40              
  Lines         3537     3537              
  Branches       642      642              
===========================================
+ Hits          2993     2995       +2     
+ Misses         410      409       -1     
+ Partials       134      133       -1

Impacted Files	Coverage Δ
isort/profiles.py	100% <ø> (ø)	⬆️
isort/wrap_modes.py	97.11% <0%> (+1.92%)	⬆️

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[timothycrosley]

This is great, thank you!