Suggest private vars and add :deprecated key

[eval]

This PR adds two things:

• the earlier discussed suggestion of private vars when using #'some-ns/,,,
• adding a :deprecated key to suggested vars and functions

[codecov-commenter]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.02 🎉

Comparison is base (ba4f21b) 93.10% compared to head (b2d7a7e) 93.13%.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master      #98      +/-   ##
==========================================
+ Coverage   93.10%   93.13%   +0.02%     
==========================================
  Files          11       11              
  Lines         740      743       +3     
  Branches       28       28              
==========================================
+ Hits          689      692       +3     
  Misses         23       23              
  Partials       28       28              

Impacted Files	Coverage Δ
src/compliment/sources/ns_mappings.clj	89.65% <100.00%> (+0.36%)	⬆️

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[eval]

Closing as GH keeps telling about merge-conflicts which were solved...