Feature: Customize CLI reporter

[jieonh]

What

Customize CLI reporter to print output at appropriate intervals. (per epoch, etc.)

Why

• The default CLI reporter prints outputs too frequently, making it difficult to check the results.
• Previously, I made the custom reporter (reports at end of each trial) to solved that problem, but there was an inconvenience that the reporting cycle was too long.

It is not a priority, and when I analyzed it last time, it was not as easy as I thought to change it to print in cycles rather than ray Trial units. But I still think it's worth looking into, since the need has come up several times.

How

• Choose appropriate reporting intervals
• Analysis CLI reporter Class
• Customize reporter

[jieonh]

I'm closing this issue because Custom Ray CLI logger is no longer necessary as we have implemented better CLI logger (rich).