Revert "modified data types in hybernate package"

This reverts commit 719ab2cde97baeba0490ce9159223e388bcdeab3.
Revert "new hibernate config file "

This reverts commit 810525c852d770a40039c9eebd2655ddf6417d92.
Revert "Tables Item,User and Relational table implemented "

This reverts commit e7b5bdd93a23046ad4464a5050ab741e6a67e6fc.
Revert "made the hibernate config file and user table in hibernate package"

This reverts commit 42f15623a734d4e58f63c53d907e2aaf871e445c.