Enabling multiple statements for mysql-async compatibility

[thelindat]

How to enable multiple statements (aka easy SQL injection)

Seriously, why do people feel the need to do this?
You can enable multiple statements to be executed by adding multipleStatements=true to your connection string.

This allow's SQL injection in resources that use string concatenation, such as esx_kashacter, rather than parameters, allowing clients to easily delete your entire database (see: https://forum.cfx.re/t/database-tables-are-deleted/4764756)

---

Enabling multi-statements allows resources to execute multiple queries in a single function, rather than splitting it into several; this is a common practice in encrypted resources that check for and create tables every time they start rather than providing users with an sql file to execute themselves (i.e. esx_job_creator).

It's also required when using vRP due to users love of multi-statements to call SELECT LAST_INSERT_ID, despite it already being returned by both query and insert functions.