Display env information used by migrate (ts version, path to package.json, tsconfig, eslint, prettier, etc.)

[egorio]

I think we should be more transparent to users by default.
It's good to show which config files rehearsal fix chooses to use for migration... for example, on validate step we can output something like:

✔ Validate project
     Configs files found:
     - package.json      ./path/to/package.json
     - tsconfig.json       ./....
     - ...

[lynchbomb]

Bumping this feature. This will be helpful for sure with monorepos on the configs found by rehearsal.