Update SP_AlignSamples.py

[totochin1222]

1.	Imports Updated •	Added import os for filesystem path handling. •	Added import tifffile as tifi to enable reading/writing .tif files in transformSamples.
2.	Function Signature Changes •	align() signature updated: removed size parameter and renamed data → dataRoot. •	align() now only takes dataRoot, cpuNo, and errorThreshold.
3.	Directory Handling Refactored •	Instead of relying on size to construct paths, align() now automatically traverses all specimens under: dataRoot/derivative/boyd-collection/histology/.
•	Corresponding sample, destination, and feature directories updated:
•	maskedSamples/ → mask-sample/
•	alignedSamples/ → aligned-sample/
•	info/ → raw-feature/
•	Added a check to warn if no specimen directories are found.
4.	Directory Creation Added •	dirMaker(destImgPath) called inside the loop to ensure the aligned images directory exists.
5.	General Cleanup / Modernization •	Hardcoded references to size removed. •	Paths now constructed with os.path.join for cross-platform compatibility. •	Processing now iterates over all specimen folders automatically rather than a single path.