Test behavior of DML and STATEMENT

[altmannmarcelo]

Description

binlog_format is a dynamic per-session variable, we currently infer that STATEMENT is only used for DDL and threat EventType::QUERY_EVENT as ReplicationAction::DdlChange .

Test and document the behavior of:

SET binlog_format=STATEMENT
INSERT INTO t VALUES (1);

Change in user-visible behavior

Requires documentation change