add migration for base_url

[kerkness]

It would appear that the baseUrl feature requires a database column that isn't included in the migrations.

[jamesdb]

Interesting, perhaps we'll need to add an if (! Schema::hasColumn()) check on the up. To account for the people who added this column themselves manually.

[kerkness]

Added an if to the up() method for those who already added the column.

[cesargb]

This functionality is only required when we create the MagicLink. Once it is created, it is not necessary get the url again.

There is a test that verifies its correct operation:

laravel-magiclink/tests/MagicLinkTest.php

Line 133 in 46ee75d

public function test_create_magiclink_with_custom_base_url()

If you believe that there is any reason why it is necessary to obtain the MagicLink url long after its creation and that it is justified, I see no problem in adding this field, but at the moment I cannot think of any reason.