speed converter: add running pace

[oleasteo]

What type of request is this?

New feature for an existing tool

Clear and concise description of the feature you are proposing

The running pace is a common speed measurement for runners. The unit is usually minutes per kilometer or mile. It would be great to add it to the speed converter tool.

Is there example of this tool in the wild?

E.g., https://desmoscalculators.com/Running-Pace-Calculator/

Additional context

No response

Validations

• Check the feature is not already implemented in the project.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.
• Check that the feature can be implemented in a client side only app (IT-Tools is client side only, no server).
• Everything is written in PLAIN ENGLISH

[sharevb]

HI @oleasteo this may be another tool since there is no conversion between speed and pace. But a Running Pace calculator (and may be converted would be possible)