S3 support for HTTP File Upload

By default HTTP File Upload component shipped with Tigase XMPP Server stores uploaded files locally in the directory structure. If you are using AWS it may be better to store data using external service like S3 which are better suited for this task and are more resilient.


For this feature to work please make sure that you are using all required dependencies (either by using -dist-max package or obtaining them from tigase-extras aws module)