A DESCRIPTION OF THE REQUEST :
On macOS, I am using *Javapackager* to make an `Application.app` bundle (called a *disk image*) from my `Application.jar` Java archive:

    javapackager \
      -deploy \
      -native image \
      -srcfiles Application.jar \
      -outdir dist \
      -outfile Application \
      -appclass Application

The resulting `Application.app` bundle is a *directory* with the following layout:

    Application.app
    |--Contents
       |--Info.plist
       |--PkgInfo
       |--Java
       | |--Application.jar
       |--MacOS
       | |--Application
       |--Resources

However I have some `<language>.lproj` directories (which hold `InfoPlist.strings` files for localizing some strings of the `Info.plist` file, cf. Apple's Developer [website](https://developer.apple.com/library/content/documentation/General/Reference/InfoPlistKeyReference/Articles/AboutInformationPropertyListFiles.html)) that I need to put in the `Resources` directory of the `Application.app` layout:

    Application.app
    |--Contents
       |--Info.plist
       |--PkgInfo
       |--Java
       | |--Application.jar
       |--MacOS
       | |--Application
       |--Resources
          |--en.lproj
             |--InfoPlist.strings
          |--fr.lproj
             |--InfoPlist.strings

*Javapackager* does not seem to have a command-line option to do that (and I do not want to copy the `<language>.lproj` directories myself after the creation of the `Application.app` bundle as it would break its signature). It has only an option to write *icon* files in the `Resources` directory, (`-Bicon <path>`) but not other types of files or directories.

So could you add a command-line option that allow to include files and directories into the `Resources` directory of .app bundles? I suggest `-resourcedir` and `-resourcefiles`.

JUSTIFICATION :
This feature is necessary as `<language>.lproj` directories which hold `InfoPlist.strings` files allow developers to localize some strings of the `Info.plist` file, cf. Apple's Developer [website](https://developer.apple.com/library/content/documentation/General/Reference/InfoPlistKeyReference/Articles/AboutInformationPropertyListFiles.html), such as the application name or copyright:

> “In addition to the recommended keys, there are several keys that should be localized and placed in your language-specific InfoPlist.strings files:
>
> * CFBundleDisplayName;
> * CFBundleName;
> * CFBundleShortVersionString;
> * NSHumanReadableCopyright.”