create Data Source Config
fun createDataSourceConfig(providedNodeName: String? = null, postfix: String? = null, inMemory: Boolean): <Error class: unknown class>
Creates data source configuration for in memory H2 as it would be specified in reference.conf 'datasource' snippet.
Parameters
provided Node Name
Reflects the "instance" of the database username/schema
postfix
Additional postix added to database "instance" name to add uniqueness when running integration tests.