[csv2img]: Too big csv data should be separated into some images

[fummicc1]

What happened?

Too big csv data can't be displayed on View and image may be broken. Beside it, after generator has been completed, application is freezed due to the memory issue I think. To avoid this situation I want to separate too big csv data into some images.

• Check optimal image size and number of images to generate according to inputted csv file.
• Return multiple images of csv file.

Version

v1.4.0