Add Option for Automatic Migration When Specifying a Database

[AhsanAbrar]

This pull request introduces a --migration option to make setting up a Laravel app easier. Now, when you choose a different database with the --database option, the migrations can run automatically. No more separate commands or prompts for migrations!

Example Usage:

To create a new Laravel application with a MySQL database and automatically run migrations:

laravel new myapp --database=mysql --migration

Alternatively, to skip the migration prompt when choosing a database interactively:

laravel new myapp --migration

[taylorotwell]

Thanks for your pull request to Laravel!

Unfortunately, I'm going to delay merging this code for now. To preserve our ability to adequately maintain the framework, we need to be very careful regarding the amount of code we include.

If possible, please consider releasing your code as a package so that the community can still take advantage of your contributions!

If you feel absolutely certain that this code corrects a bug in the framework, please "@" mention me in a follow-up comment with further explanation so that GitHub will send me a notification of your response.