allow to set multiple image names with delimiter for ignore_tag_images

[mski-iksm]

There are some cases that we want to set multiple values for image names.

How ever we can only set multiple image names in following:

--ignore-tag-images image_name_1 --ignore-tag-images image_name_2

It is much easier if we can set in following format, because writing format can be shared regardless of number of images.

--ignore-tag-images image_name_1,image_name_2

[mski-iksm]

@hirosassa @kitagry Please review!

[kitagry]

LGTM

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.74%. Comparing base (53b7216) to head (3257ab2).

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Additional details and impacted files

@@            Coverage Diff             @@
##             main      #40      +/-   ##
==========================================
- Coverage   71.37%   70.74%   -0.64%     
==========================================
  Files           7        7              
  Lines         758      728      -30     
==========================================
- Hits          541      515      -26     
+ Misses        217      213       -4     

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[hirosassa]

Looks good! Thanks for your first contribution.

[hirosassa]

@mski-iksm v1.1.10 released!
https://github.com/hirosassa/ksnotify/releases/tag/v1.1.10