TIDE: Delete and re-copy files on TEN project update

[Lwmte]

Currently, TIDE just copies and overwrites existing files in system scripts folder in TEN projects, when projects are updated. However, it may happen that a system script split happened between versions, and in this case there will be duplicated code in both old (unsplitted) and new (splitted) script files.

Solution: TIDE should delete and re-copy system scripts folder when TEN project is updated.