Fix/sequence truncation

[e-tornike]

PR Description

This PR fixes the tokenization mismatch of long sequences.

Motivation and Context

References issue: #95

Tests and Coverage

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Docs (Added to or improved Transformers Interpret's documentation)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Final Checklist:

• [x] My code follows the code style of this project.
• [ ] I have updated the documentation accordingly.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.

[e-tornike]

Oh, I followed the contributing guideline. It seems that the dev branch is not up-to-date.

[cdpierse]

Ah yes apologies, that is out of date, I'm no longer doing merge into dev and am doing PR's directly into master could you change the target branch of this PR ?

[e-tornike]

No problem. I've changed the branch of the PR.