Add command line test application that can print
the mime type of a file or dump all mime types.
Task-number: QTCREATORBUG-13996
Task-number: QTCREATORBUG-14005
Change-Id: I5ef2fa4b9fbab986b1db4fc0bd8abaacdf4f8fa0
Reviewed-by: David Faure <david.faure@kdab.com>