Respect flexilogger writer format

[mathsaey]

It would be great if the logger-view could use the format that was set on the flexi logger instance. If this is not possible, some other way to override the default styling would be nice.

[fin-ger]

As of now, this is not possible as cursive is using a special type to create (color-) formatted strings, the StyledString.

See CursiveLogWriter::write for the current implementation.

I would prefer a solution where the flexi-logger formatting gets translated to a cursive StyledString. I do not want to implement my own log formatting, as this would not integrate quite well with how flexi-logger was supposed to work.

However, as you noted, the current solution is a non-solution. I'm open to ideas and will try to look into it in the next days/weeks.

[MikeCain]

Until this is implemented, I'd like to suggest removing the .format(formatter_fn_here) from example code.
I was really scratching my head trying to figure out why nothing would change when I changed my format function haha 😛