Add 'working' directories for new Lua-based build scripts


git-svn-id: http://www.latex-project.org/svnroot/experimental/trunk@4756 de43f980-851b-0410-b2f7-c40aca1f87e0
Add a local copy of DocStrip

The aim for the new scripts will be to use an 'isolated' TeX system, where
possible. As DocStrip is not part of the L3 distribution, that means having
a local copy available.


git-svn-id: http://www.latex-project.org/svnroot/experimental/trunk@4757 de43f980-851b-0410-b2f7-c40aca1f87e0