mysql / mariadb - add ignore database

defaults/main.yml

@@ -9,6 +9,7 @@ backup_mysql_password: ""
 backup_mysql_docker_enabled: false
 backup_mysql_docker_container: ""
 backup_mysql_ignore_tables: []
+backup_mysql_ignore_databases: []
 
 backup_mariadb_host: ""
 backup_mariadb_user: ""
@@ -16,6 +17,7 @@ backup_mariadb_password: ""
 backup_mariadb_docker_enabled: false
 backup_mariadb_docker_container: ""
 backup_mariadb_ignore_tables: []
+backup_mariadb_ignore_databases: []
 
 backup_pg_host: ""
 backup_pg_user: ""