Improved Authentication (Close #219)

[edgardmessias]

• Default show last username
• If press "ESC", not prompt more
• Improved detection of authentication

[codecov]

Codecov Report

Merging #220 into master will decrease coverage by 0.17%.
The diff coverage is 5%.

@@            Coverage Diff             @@
##           master     #220      +/-   ##
==========================================
- Coverage   63.68%   63.51%   -0.18%     
==========================================
  Files          24       24              
  Lines        2272     2283      +11     
  Branches      400      404       +4     
==========================================
+ Hits         1447     1450       +3     
- Misses        821      829       +8     
  Partials        4        4

Impacted Files	Coverage Δ
src/repository.ts	71.35% <0%> (-0.36%)	⬇️
src/svn.ts	83.47% <0%> (-1.41%)	⬇️
src/commands.ts	54.8% <9.09%> (-0.8%)	⬇️
src/svnRepository.ts	61.97% <0%> (-0.53%)	⬇️
src/decorators.ts	96.22% <0%> (+7.54%)	⬆️

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