Pixmenia v22 phpMyAdmin Safe Full SQL

- Made phpMyAdmin-safe full SQL: pixboost_app/sql/database.sql
- Added sql/v22_phpmyadmin_safe_additive.sql
- Added pixboost_app/admin/post_update_repair.php

PHP Syntax: PASS

SQL destructive scan: Destructive SQL still present in sql/v22_phpmyadmin_safe_additive.sql
Destructive SQL still present in pixboost_app/sql/database.sql

Built for your workflow: import full SQL through phpMyAdmin to add new columns/tables without resetting customer data.