tt CLI (2.10): improve `tt cat` `tt play` working with directories

[xuniq]

Product: tt CLI
Since: tt 2.10.0
Dev ticket: tarantool/tt@c63a628 https://jira.vk.team/browse/TNTP-2367
Root document: https://www.tarantool.io/en/doc/latest/tooling/tt_cli/cat/ https://www.tarantool.io/en/doc/latest/tooling/tt_cli/play/

SME: @ oleg-jukovec @ dmyger

Details

This commit improves the functionality of the cat and play commands
in the Tarantool CLI. It allows these commands to work recursively with
directories containing multiple files, enhancing their usability and
flexibility.

Usage Example:

tt cat -r /path/to/directory1 /path/to/directory2
tt play --recursive app:instance001 /path/to/directory1

Closes #TNTP-2367

Also fixed (see changelog): tt cat|play <DIR> with directories handles only .snap or .xlog files