refactor(@angular-devkit/core): deprecate createConsoleLogger

`createConsoleLogger` is deprecated. Use a custom logger implementation instead. This does not apply to application code.

Author: clydin

packages/angular_devkit/core/node/cli-logger.ts

@@ -15,6 +15,8 @@ export interface ProcessOutput {
 
 /**
  * A Logger that sends information to STDOUT and STDERR.
+ * 
+ * @deprecated Use a custom logger implementation instead.
  */
 export function createConsoleLogger(
   verbose = false,