[script.*] Implement F1-score a priori where possible; Improve plotting of precision-recall curves with better legends, more consistence; Remove redundant plotting code; Update tests

[data.transforms] Refactor to re-use torchvision as much as possible; Harmonize naming convention with torchvision; Completely test this module

[engine.trainer] Move creation of output_folder into engine; Call train argument output-path -> output-folder to make it more explicit

[docs,scripts] Separate evaluation script; Improve trainer engine code; Reset network model names to match resource names

[configs] Documented all configuration files; Added script to list/describe/copy configuration files; Re-structured user guide