Add pycharm, fix detached run, add utils functions

[agamm]

• Add success print to run_plugin
• Fix run so it will be run detached
• add get_dirs_in_dir, read_file and report_issue to comeback.utils
  • get_dirs_in_dir - returns 1st level of dirs in a path
  • read_file - reads a file and closes the fd
  • report_issue - template for errors that need reporting
• Fix the example dir structure

Adds support for #4 fixes https://github.com/agamm/comeback/issues/9