Added MySQLi framework

Named the class Databasei
Added MySQLi framework

Added framework to objects/database.php class Databasei
Added new $DBi to header.php (connects to database)

Untracked change:
Added db credentials to bitdip_config.php
Revert "Added MySQLi framework"

This reverts commit d2cf044fd1113a1b7dccb8322e498ef03904efa7.
Revert "Revert "Added MySQLi framework""

This reverts commit 2a9b397fb0b988e3d9602989f463cfaa0fa015b2.