Support reinstall in check command

[krisl]

Adds --reinstall support also for the check command, so we can get a full list of deps.
Useful for things like CI and packaging where you want to spit out all dependencies to do something with them later on.

Additionally adds some consistency in output between commands.

[codecov]

Codecov Report

❌ Patch coverage is 60.00000% with 14 lines in your changes missing coverage. Please review.
✅ Project coverage is 72.43%. Comparing base (ad3a610) to head (b7dec8e).
⚠️ Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
src/rosdep2/main.py	46.15%	11 Missing and 3 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1001      +/-   ##
==========================================
+ Coverage   71.76%   72.43%   +0.67%     
==========================================
  Files          44       44              
  Lines        3488     3483       -5     
  Branches      686      684       -2     
==========================================
+ Hits         2503     2523      +20     
+ Misses        808      785      -23     
+ Partials      177      175       -2     

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