[EfficientLoFTR] dynamic image size support (#40329)
* fix: reverted efficientloftr embeddings computation to inference time with lru cache
* fix: added dtype and device for torch ones and zeros creation
* fix: fixed embed height and width computation with aggregation
* fix: make style
* fix error message
* fix fa2 tests
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Co-authored-by: qubvel <qubvel@gmail.com>