Add VGG16 feature extractor for ImpactSynth baseline

Move input normalization to models and make layer selection part of forward()

Add M252 and M253

Add MRSegmentator weights, TS/M850 and SAM2.1 Small

Update README.md

Update README.md

Update README

Add github link

Initial upload of TorchScript models for IMPACT

Initial upload of TorchScript models for IMPACT

initial commit