Implemented TICON encoder with contextualized and isolated inference modes for all currently supported extractors

[drgmo]

This adds the TICON encoder for slide-level contextualization of tile embeddings, following the TICON paper: (https://arxiv.org/abs/2512.21331 , Belagali et al.)

• Ticon has two inference modes:
  -->"with slide context":
  all tile embeddings are processed together, allowing each tile to receive context from the full slide-level neighborhood (note: extractor of is automatically detected from .h5- metadata, no config-input necessary)
  -->"without slide context/ isolated:
  tiles are processed independently (note: extractor must be specified in config-input)

-->in each case, all currently supported extractors are available (UNI2, H-Optimus-1, GigaPath, CONCH1_5, Virchow2)

[mducducd]

Hello,
Thank you for your efforts. I suggest that whether new slide-encoders or tile feature extractors should be standalone modules. In stamp/modeling/models is the space for specific-task aggregation models (predictor) only.