GitLab

* Introduced a new function, IsExprInvariantInVectorBoundary, to encapsulate the logic for checking if an expression is invariant within vector boundaries, improving code clarity and reusability.
* Updated the existing vectorization logic to utilize this new function, streamlining the process of determining vectorization feasibility based on boundary conditions.
* Enhanced comments for better understanding of the vectorization criteria and mathematical rationale behind the checks.