Moved back installer into the project.

[AlexSkrypnyk]

This moves the Installer back to the project from https://github.com/drevops/vortex-installer
This is because it is much easier to make changes in a single place for all parts of the system.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.32%. Comparing base (94a3b25) to head (2b0c832).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1393      +/-   ##
===========================================
- Coverage    67.62%   67.32%   -0.31%     
===========================================
  Files           41       41              
  Lines         3064     3057       -7     
===========================================
- Hits          2072     2058      -14     
- Misses         992      999       +7     

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