chore: create vesting contracts auth functions for horizon deployment

[Maikol]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.84%. Comparing base (b8f84ae) to head (29935e2).
⚠️ Report is 7 commits behind head on horizon.

Additional details and impacted files

@@           Coverage Diff            @@
##           horizon    #1219   +/-   ##
========================================
  Coverage    82.84%   82.84%           
========================================
  Files           47       47           
  Lines         2093     2093           
  Branches       620      620           
========================================
  Hits          1734     1734           
  Misses         359      359           

Flag	Coverage Δ
unittests	82.84% <ø> (ø)

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