[FEATURE] - Allow the whitelist file to be either JSON or JSONC so comments can be added

[RundaScath]

• What are you trying to do?
  I would like to add comments around the white list file by adding a header section with URLs to this repo's readme file and an explanation of the file
  I would like to add header comments over groups of white listed issue Ids in order to better group them and organize the list

• What feature or behavior is this required for?
  Human context, this will help any developer following behind to have a faster and better understanding of why this file exists and organize the added items

• How could we solve this issue? (Not knowing is okay!)
  Allow the tool to accept either a .json or .jsonc file extention for the --whitelist command option

• Anything else?
  I am loving this tool :D

cc @bhamail / @DarthHater / @allenhsieh / @ken-duck

[carcinocron]

yaml/toml would be way better