BIS-773: Fixed failing tests.

BIS-773: Fixed failing tests.

BIS-773: Fixing failing tests. Fixed file contents. Fixed dataset's metadata folder creation logic.

BIS-773: Fixing failing tests. Fixed file contents. Fixed dataset's metadata folder creation logic.

BIS-773: Changed the order of items to the desired one. Fixed the issue that parent's and children were displayed like "CODE (null)" when they have a name.

BIS-773: Changed the title to be displayed more correctly.