[engine.*] Move model summarization to training; Separate static information from dynamic information logging

[engine.trainer] Flush CSV file as we log it (every epoch); Only output minimal information on the screen

[engine.trainer] Implement thorough resource monitoring; Do not plot in the end - writing a CSV is fine already

[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

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

[checkpointer] Make it flexible to directory renames; Fix saving of trainlog in case we are interrupted

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