Initial project setup

[nadzyah]

The change contains basic implementation of the command with unittests.

Currently, for simplicity, the tail command itself doesn't accept any options, i.e. running it as tailor -f <filename> <command> is not possible. However, the alternative command accepts as many options as needed, and the filename is passed as the last option there.

[bdrung]

LGTM. Instead of can_tail_file we could tail the file ourselves instead calling tail, but that is a task for a future PR.

[lvoytek]

LGTM overall, just found a typo in the long_about

[nadzyah]

LGTM. Instead of can_tail_file we could tail the file ourselves instead calling tail, but that is a task for a future PR.

do you also mean to implement all the supported tail options ourselves?

[nadzyah]

@bdrung @lvoytek let me know if you're fine with the changes and feel free to merge

[lvoytek]

LGTM!