Add new csv type of report - per-task

[fighterpoul]

This PR adds new CSV type of report - per-task - which displays a CSV document where each task has its details displayed in a row.

Details:

• new csv-section: per-task or per_task
• move timedelta_to_billable to report.common, as it is no longer used only by per_day report
• integration test

[larose]

Thanks for this PR! The CI jobs failed because it was trying to use ubuntu-18.04 which is no longer supported by GitHub. I've updated it to ubuntu-22.04 in #102, but I also had to update all python dependencies because some of them were old and weren't compatible with python 3.8+.

Could you rebase your PR on master?

I'll aim to review your PR within the upcoming week.

[fighterpoul]

@larose done. Indeed I have started implementing this by using Python 3.10 but it was not working well as far as development is concerned. Great to get it updated :)

[larose]

Thanks! I've left one comment but otherwise it looks good to me!

[larose]

In

utt/utt/report/per_day/csv_view.py

Line 17 in e4143d6

fieldnames = ["date", "hours", "duration", "projects", "tasks"]

the usage of the plural form is applied to hours, projects and tasks. We should be consistent. Either we change to plural here or change to singular in per_day/csv_view.py.

Also, let's arrange the columns in a more logical order, moving from general to specific. For instance, let's reorder the first three columns to be "date" "project" and "task" in that sequence.

[larose]

Thanks! Feel free to open a PR to put your real name here if you want.