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Rename fine_tuned_sam2_batched_90000.torch to ConverSeg-Net_sam2_90000.torch

Rename ConverSeg_plm_90000.torch to ConverSeg-Net_plm_90000.torch

Rename fine_tuned_sam2_batched_plm_90000.torch to ConverSeg_plm_90000.torch

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