Script to create test dbs. #6

contrib/mariadb-create-test-databases.sql

+CREATE DATABASE aura_engine_api_0 CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+CREATE DATABASE aura_engine_api_1 CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+CREATE DATABASE aura_engine_api_2 CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+CREATE USER 'aura_engine_api'@'localhost' IDENTIFIED BY '1234';
+
+GRANT ALL PRIVILEGES ON aura_engine_api_0.* TO 'aura_engine_api'@'localhost';
+GRANT ALL PRIVILEGES ON aura_engine_api_1.* TO 'aura_engine_api'@'localhost';
+GRANT ALL PRIVILEGES ON aura_engine_api_2.* TO 'aura_engine_api'@'localhost';
+
+FLUSH PRIVILEGES;
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