Instead of fetching the whole svn repo containing all current
dependencies into source, fetch them individually into subdirectories of
source.
Adds a wrapper script to each package to place the build output where
it's currently expected.
This allows adding and removing dependencies as well as changing origin
of those packages on a case by case basis.
It's recommended to run "git clean -dxf libraries/source" to free up
extra space and remove untracked files no longer covered by changes in
.gitignore.
Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>