Create new LogContextSelector which selects the first caller that is not a log API

There is a need in WildFly for a log context selector that short-circuits after the first callers class loader that is not a log API. All log API's would have to be registered. The call stack would be walked and once a class loader is found that is not registered as a log API class loader, that caller would be used to determine whether or not a registered log context should be used. If no context is associated with the caller, the default log context will be used and the call stack walking will stop.