ModuleBundleBuildDir/LibraryR was being staged as ModuleLibrary/, 283 MB of
devtools, roxygen2, testthat, pkgdown, rcmdcheck and jaspModuleTools. That is
the toolchain that *builds* module bundles; JASP loads none of it at runtime.
I added it when I still believed the module directories were source trees
missing their library. Once that turned out to be wrong - the bundles carry
their own dependency closure, jaspTTests alone unpacks to 139
content-addressed package directories - the staging should have been removed
and was not.