[13740] Add afunction that checks for repeated -I paths (issue #78)

[juanjo4936]

Description

Added a function that checks if the paths included with the -I function have already been added, and skips them if so. This solves issue #78, and was suggested by the original author. I had to update a couple of terms to the new notation, so we should be careful with backports.

@Mergifyio backport 3.3.x 2.5.x 2.1.x

Fixes #78

Contributor Checklist

• Commit messages follow the project guidelines.
• Tests that thoroughly check the new feature have been added/Regression tests checking the bug and its fix have been added; the added tests pass locally
• N/A New feature has been documented/Current behavior is correctly described in the documentation.
• Applicable backports have been included in the description.

Reviewer Checklist

• The PR has a milestone assigned.
• The title and description correctly express the PR's purpose.
• Check contributor checklist is correct.
• Check CI results: changes do not issue any warning.
• Check CI results: failing tests are unrelated with the changes.

[MiguelCompany]

@Mergifyio backport 3.3.x 2.5.x 2.1.x

[mergify]

backport 3.3.x 2.5.x 2.1.x

✅ Backports have been created

• #430 [13740] Add afunction that checks for repeated -I paths (issue #78) (backport #429) has been created for branch 3.3.x but encountered conflicts
• #431 [13740] Add afunction that checks for repeated -I paths (issue #78) (backport #429) has been created for branch 2.5.x but encountered conflicts
• #432 [13740] Add afunction that checks for repeated -I paths (issue #78) (backport #429) has been created for branch 2.1.x but encountered conflicts