Resolve "[FEATURE] Handler can return something"

Closes #6

See merge request !8

Fix errors

Resolve "[FEATURE] Template Manager key"

Closes #4

See merge request !5

Resolve "Add gitlab-ci configuration"

Closes #5

See merge request !7

Resolve "[FIX] Find and fix memory leak"

Closes #3

See merge request !4

Resolve "Create a ReadMe.md"

Closes #2

See merge request !3

Merge branch 'ben/1-import-existing-code' of gitlab.holidev.net:open-libs/SmartEvent into ben/2-create-a-readme-md

Ben/1 import existing code

See merge request !2