fix: single file on macOS triggers only remove event ThomasMonkman#51

Fix issue because on macOs only only remove event was triggered

FileWatch.hpp

@@ -1003,7 +1003,7 @@ namespace filewatch {
                         eventInfos[0].file = _filename;
                   }
                   else {
-                        StringType absPath = pathOfFd(_file_fd);
+                        StringType absPath = fullPathOfFd(_file_fd);
                         PathParts split = splitPath(absPath);
 
                         if (split.directory != _path) {