yoda2rio: honor paths in YODA

Created by: lukasheinrich

rigt now yoda2rio copys the object name (which is path + leaf name) as a single string and takes that to be the name of the object in rio. This makes pawgo break

paw> /hist/open h1 /file/id/f/MonoH_Truth/jets
paw: error: no record [MonoH_Truth] in file [id=f name=what.rio]

the best solution is to just use the same paths as in YODA and make them actual paths in rio I think