* Allow customizing Tenants DB JDBC uid/pwd/driver (FINERACT-806) Added Java system properties for username and password to docker-compose Modified sever.xml to get username and password * Fixes for customizing Tenants DB JDBC uid/pwd/driver (FINERACT-806) * Use random MYSQL_ROOT_PASSWORD in docker-compose.yml (FINERACT-806) This provides future non-regression testing that the the customized MySQL password is actually really used, and it doesn't just work because "mysql" is still hard-coded anywhere. Co-authored-by: Yemdjih Kaze Nasser <kaze.nasser@outlook.com>