[FEATURE] Database Migrations - Handling multiple migrations with different connections

Is your feature request related to a problem? Please describe. I got few migrations each referring a different connection. migrate:fresh, migrate:refresh doesn't handle this scenario since they operate on the default connection or in the specific connection passed via --database param.

Describe the solution you'd like The simplest solution can be to process only migrations that has the $connection property set to the default connection or in the specific connection passed via --database param. A better solution could be iterate the distinct connections defined in the migrations and process them according.