Remove filters for ILoggers created by customer DI

We need to be less restrictive on filtering logging categories. Today if someone creates a logger that is not in one of our "accepted" lists, we'll filter it away. You can get around this by adding one or more filters to get those categories flowing again, but this shouldn't be necessary.

The below settings will allow any category that starts with "OrderService" to be logged at "Information" and above levels.

```
{
"version": "2.0",
"logging": {
"logLevel": {
"OrderService": "Information"
}
}
}
```