Added new functions and improvements for database management

- Removed WhereWithJoins method
- Added functions for creating/dropping tables, adding/removing columns, renaming tables, and updating fields
- Added function to truncate all data from a table
- Added support for listing, creating, and deleting tables and databases
- Added function to list table columns
- Added functions to drop primary and foreign keys
- Updated code comments and usage examples throughout

Author: bertugfahriozer

.gitignore

@@ -2,4 +2,5 @@
 .idea
 .vscode
 phpDocumentor.phar
-.phpdoc
+.phpdoc
+.DS_Store