Add Hector

[renatomassaro]

Hector is an alternative solution for the problem described at https://stackoverflow.com/q/46651888/1454986

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This change is 

[sourcelevel-bot[bot]]

Ebert has finished reviewing this Pull Request and has found:

• 1 possible new issue (including those that may have been commented here).

You can see more details about this review at https://ebertapp.io/github/HackerExperience/Helix/pulls/299.

[renatomassaro]

Reviewed 2 of 2 files at r1. Review status: all files reviewed at latest revision, all discussions resolved.

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Comments from Reviewable