Tests and linter status:

Added comparison of two flat arrays.

To compare two flat JSON files, call the utility. Pass the paths to the file as arguments. You can use both full and relative paths. Example: gendiff /users/home/file1.json ../home/file2.json

To compare two flat YAML files, call the utility. Example: gendiff /users/home/file1.yaml ../home/file2.yaml

Comparison output of nested trees. Example: gendiff /users/home/file1.yaml ../home/file2.yaml

Comparison output of plain style. Example: gendiff -f plain /users/home/file1.yaml ../home/file2.yaml

Comparison output of json style. Example: gendiff -f json /users/home/file1.yaml ../home/file2.yaml