and compares the path of the node against the given pathobject.
Also make comparison method take a flag to indicate if it should
check if the second path is a true prefix of the first.
plus some namespace cleanup
macro which does strcmp against ".." and (the untranslated)
componentname
* make PUFFS_FLAG_BUILDPATH build paths also if dotdot is the case,
and adapt the regular path objects to this
* make nullfs lookup readable because we can now get rid of dotdot
processing there
system backends which operate purely based on paths, push out more
path management into the library and make path management more
abstract: enable a file system to define a bunch of path management
callbacks, which are used by the framework. Management of normal
/this/is/a/path type paths is provided by the library.