DependencyMapExtension
Extension interface for dependency maps.
This can be used for supplying services through external means via a service locator for 3rd party libraries.
To do this, you must include a file in your resources under: META-INF/services/io.ktor.server.plugins.di.DependencyMapExtension
The file should contain the full name of the implementing class.
The implementing class must have a public constructor with no arguments.