Improve profile directory detection

[glneto]

Hello!
There were some problems while rebasing the previous branch.

This one follows the same approach, checking for the Player.js file as requested on the issue.

Tests are already written for the new function.

Hope it helps.

Closes #119

[codecov-io]

Codecov Report

Merging #133 into master will decrease coverage by 0.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #133      +/-   ##
==========================================
- Coverage    90.9%   90.89%   -0.02%     
==========================================
  Files          80       80              
  Lines        1023     1032       +9     
  Branches      162      164       +2     
==========================================
+ Hits          930      938       +8     
- Misses         77       78       +1     
  Partials       16       16

Impacted Files	Coverage Δ
packages/warriorjs-cli/src/Profile.js	96.19% <100%> (-0.69%)	⬇️

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[olistic]

Very nice work, @glneto! Thanks