Databases not deployed in order when all specify schema-database

[rjrudin]

This applies to any "other" database file - i.e. not content-database.json, schemas-database.json, or triggers-database.json.

Example - content database:

{
"database-name": "my-content",
"schema-database": "my-schemas"
}

schemas database:

{
"database-name": "my-schemas",
"schema-database": "Schemas"
}

[kghmanuel]

Kindly add to the scenario:

{
"database-name": "my-content",
"schema-database": "my-schemas",
"triggers-database": "my-triggers"
}

[rjrudin]

Opened up PR - #229