Is your feature request related to a problem? Please describe.
If I introduce a new loss function, I have to change the metric as well. For example: monai.losses.Dice and monai.metrics.DiceMetric. Most of the losses have not a metric associated.

Describe the solution you'd like
I wonder if the metrics can be made general to any loss function. Where the loss function would be an argument of the metric. Other metric arguments would be the reduction method and similar things.

Describe alternatives you've considered
The alternative is to develop my own Metric every time I change the loss function. But not ideal imo.