Add support for rsync include flag

[pblesi]

Currently support for the rsync include flag is not provided via supply drop. This PR adds this support. The reason for this support is so you can explicitly include some nested folders while excluding others for example if you want to include a select list of secret files.

Special note: The include flag should come before the exclude flag so rsync does not throw out the included files before they can have a chance to be included.