macdeployqt does not sign binaries in Helpers

Plain binaries within the Helpers Directory are not codesigned. When I checked the macdeployqt source code I saw that it only checks for Bundles within the Helpers folder. But it is also ok to have plain binaries in there see Table 3-1 of the Documentation.

https://developer.apple.com/library/archive/documentation/Security/Conceptual/CodeSigningGuide/Procedures/Procedures.html 

Additionally binaries that have been added with the '-executable' option should also be signed. But those binary paths are not passed to the codesignBundle function