Allow for Messageless options

[wsargent]

We allow for Markers by themselves:

https://github.com/tersesystems/blindsight/blob/master/api/src/main/scala/com/tersesystems/blindsight/slf4j/StrictSLF4JMethod.scala#L85

And throwables by themselves

https://github.com/tersesystems/blindsight/blob/master/api/src/main/scala/com/tersesystems/blindsight/slf4j/StrictSLF4JMethod.scala#L48

But don't have (Arguments), (Markers, Arguments), or (Markers, Arguments, Throwable).

Maybe a new API method?