Resolve "[H2] - Code refactoring"

Aurore Dupuisrequested to merge
80-h2-code-refactoring into develop

Closes #80 (closed) Closes #79 (closed) Closes #78 (closed) Closes #77 (closed) Closes #76 (closed) Closes #82 (closed)

Edited by Aurore Dupuis

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