Save logging

[sanyavertolet]

Right now we have com.saveourtool.save.core.logging.log<LOG_LEVEL> which implements logging. We also reuse it in save-cloud, wrapping it into com.saveourtool.save.agent.utils.log<LOG_LEVEL>Custom. Suggestion is to process option to append thread-id on save-cli side. Kotlin logging could also be used