(#371) Export function to connect external logger

Author: s1hofmann

Diff for: index.ts

@@ -8,6 +8,7 @@ import {LineHelper} from "./lib/util/linehelper.class";
 import {createWindowApi} from "./lib/window.function";
 import providerRegistry from "./lib/provider/provider-registry.class";
 import {loadImageResource} from "./lib/imageResources.function";
+import {ExternalLogger} from "./lib/provider/log-provider.interface";
 
 export {
     AssertClass,
@@ -52,6 +53,9 @@ const loadImage = providerRegistry.getImageReader().load;
 const saveImage = providerRegistry.getImageWriter().store;
 
 const imageResource = (fileName: string) => loadImageResource(providerRegistry, screen.config.resourceDirectory, fileName);
+
+export const connectLogger = (logger: ExternalLogger) => providerRegistry.getLogProvider().connectLogger(logger);
+
 export {fetchFromUrl} from "./lib/imageResources.function";
 
 export {