Separated into dlookr and dlookrExtra packages

[choonghyunryu]

Background

• The loading speed of dlookr package is very long
  • It is because of fonts for visualization and resources for reporting.
• It has a lot of distracting features.
  • Separation of essential basic functions and additional functions is required.
• Functions that refer to font configurations that are closely related to the system environment may cause installation errors in some environments.

Strategy

• Basic analysis functions remain in dlookr.
• Transfer the function related to report output to dlookrExtra.
  • Report output functions
  • Additional fonts
    • Korean font: NanumSquare.
    • LiberationSansNarrow