When specifying customProductName or customLogoFile in consoles.operator.openshift.io cluster, the console does not display a favicon. The customer wants to be able to add its own favicon, ideally the same way as the customLogoFile, by creating a ConfigMap in the openshift-config namespace.

Console should pick up change done in CONSOLE-4061 

AC: 

• Add new bridge flag for custom favicon file path, which is mounted into the console pod
• Read the custom favicon file and set it as a SERVER_FLAG
• Set the custom favicon for the console index page