Add a way to customise the comment style if banner is a string

[mjeanroy]

Currently, there is now way to customize the comment style if banner is a string? For example, this does not work:

license({
	banner: licenseStr,
	commentStyle: "ignored"
})

Originally posted by @revelt in #308 (comment)

[mjeanroy]

To address this issue, this commit add the possibility to define banner content like this:

license({
  banner: {
    commentStyle: 'ignored',
    content: licenseStr,
  },
});

Since I think having different options to define the "same thing", banner.file and banner.encoding are deprecated and should now be defined like:

license({
  banner: {
    commentStyle: 'ignored',
    content: {
      file: path.join(__dirname, 'LICENSE'),
      encoding: 'utf-8',
    },
  },
});

Old options are still supported, but will be removed in a future version and a warning will be printed to the console.

[mjeanroy]

@revelt Is that ok for you?
This is available with version 0.11.0, let me know if it solves your issue ;)

[mjeanroy]

@revelt I close the issue, please comment if it does not work for you ;)