uml: move to subdir

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/psusan-uml-inside b/uml/psusan-uml-inside
similarity index 100%
rename from psusan-uml-inside
rename to uml/psusan-uml-inside

diff --git a/psusan-uml-psusan b/uml/psusan-uml-psusan
similarity index 100%
rename from psusan-uml-psusan
rename to uml/psusan-uml-psusan

diff --git a/psusan-uml-run b/uml/psusan-uml-run
similarity index 100%
rename from psusan-uml-run
rename to uml/psusan-uml-run

diff --git a/psusan-uml-setup b/uml/psusan-uml-setup
similarity index 100%
rename from psusan-uml-setup
rename to uml/psusan-uml-setup