Copies a set of files located somewhere on the master node (cf. the Paths
are relative to field) into the workspace of the corresponding job on
the node performing the build (whether it is a slave node or the master
node itself).
This is useful, for example, when some files required for the build to take
place are not present in the SCM, but are located in one of the three
following locations: HUDSON_HOME/userContent
, HUDSON_HOME
,
or directly in the project's workspace (on the
master node).