file-storage-simple-package-create.sql

Removed the vile fs_simple_objects added by OF to store URLs in file
storage despite the existence of a non-versioned URL type in the content
repository. Upgrade scripts provided. I added Tcl API to the content
repository to honor our desire to export the SQL API to Tcl client code.

1. folder contents are now counted correctly (bug fix)
2. The fs_objects view is now usable in PG (it was a UNION view before and
therefore didn't scale)
3. Code in file storage is considerably simpler now and all file storage
objects are now stored in the content repository, as they should
be.

The Oracle version may need some work I'll finish testing this afternoon.