adding initial implementation of dir watcher
adding initial implementation of dir watcher

tagspaces/tagspaces,tagspaces/tagspaces,tagspaces/tagspaces,tagspaces/tagspaces,cbop-dev/tagspaces,tagspaces/tagspaces,tagspaces/tagspaces,tagspaces/tagspaces,tagspaces/tagspaces,cbop-dev/tagspaces,cbop-dev/tagspaces