Function allowing to write a workspace as a collection of xml files readable by JDemetra+ Graphical user interface.
Examples
dir <- tempdir()
jws <- jws_new()
jsap1 <- jws_sap_new(jws, "sap1")
y <- rjd3toolkit::ABS$X0.2.09.10.M
add_sa_item(jsap1, name = "x13", x = y, rjd3x13::x13_spec())
save_workspace(jws, file.path(dir, "workspace.xml"))