Centralize configure-able factory classes

src/service/Canon.ts

@@ -1,5 +1,5 @@
 import {Canonical} from './Canonical'
-import {Singleton} from '../di'
+import {Singleton} from '../di/decorator/injection'
 import {Maybe} from '../util'
 
 /**

src/service/Logging.ts

@@ -1,5 +1,7 @@
-import {DebuggingTraceIsNotAnError, Logger, LoggingLevel, LogMessage} from '../util'
-import {Singleton} from '../di'
+import {Singleton} from '../di/decorator/injection'
+import {DebuggingTraceIsNotAnError} from '../util/error/DebuggingTraceIsNotAnError'
+import {LoggingLevel, LogMessage} from '../util/logging/types'
+import {Logger} from '../util/logging/Logger'
 
 /**
  * A singleton service that manages loggers registered in the application, and