Created command do seed dev database

[renzon]

close #4849

[codecov[bot]]

Codecov Report

Merging #4851 (3ec3672) into master (50235a5) will increase coverage by 0.19%. The diff coverage is 97.67%.

@@            Coverage Diff             @@
##           master    #4851      +/-   ##
==========================================
+ Coverage   91.83%   92.02%   +0.19%     
==========================================
  Files         241      243       +2     
  Lines        6928     6971      +43     
==========================================
+ Hits         6362     6415      +53     
+ Misses        566      556      -10     

Files Changed	Coverage Δ
pythonpro/core/management/commands/seed_dev_db.py	95.45% <95.45%> (ø)
pythonpro/core/tests/test_seed_command.py	100.00% <100.00%> (ø)

... and 1 file with indirect coverage changes

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