Allow the cause to be logged

[Ellzord]

Currently it isn't possible to access the Cause with LogFormat. It isn't also extensible enough to do that (due to LogFormat.make() being private).

We should consider adding Cause in LogFormat.default but at the very least add the ability to combine it in with |-| (add val cause to the companion object).

[justcoon]

Hi @Ellzord,

LogFormat.cause was added, but for now, it is not part of LogFormat.default

you can create own one

val logFormatWithCause = LogFormat.default |-| LogFormat.cause

let us know if this is solving this issue ...

thanks

[Ellzord]

LGTM