Add option to specify database url

[maxpain]

No description provided.

[Kononnable]

What exactly are you reffering to? Is it some db engine specific feature?

[maxpain]

@Kononnable for example:
postgresql://other@localhost/otherdb?connect_timeout=10&application_name=myapp
mongodb://myDBReader:D1fficultP%[email protected]:27017/admin

[saostad]

Azure sql server example: DB_NAME.database.windows.net

[darklightcode]

@Kononnable Also allow query parameters in the url such as:
sqlite://c:\\path\\to\\local.db?connect_timeout=10&entityPrefix=app_&synchronize=true&name=usedForMultipleConnectionsConfigs , new URL will interpret most of these links quite nice.

And the query parameters that are valid for typeorm should go in ormconfig.json at the final output.