fstroth

Lib restructure

1

His PR refactors ross and ultralytics to the new structure.

Updating and adding tests for better test coverage

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This PR is still work in progress! Pls don't merge yet! The goal is to add tests for parts that are not covered atm to prepare for the big changes...

Pytorch lightning callback to freeze backbone

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## Pytorch lightning callback to freeze backbone **Describe the solution you'd like** Write callback the takes an int for the number of epochs to freeze the backbone for. Pls assign...