Infoclick: new formatting method (MultiplyBy)

[jesade-vbg]

New formating method is needed.

multiplyBy

Use case:
We have a value in meters. 0.08 meters.
But we want it in centimeters.

with value 0.08
{value|multiplyBy(100)}
you would get 8..............

Simple but useful.

[jacobwod]

Don't forget to a) tag this issue (#1150) with the closed keyword in your commit message and b) set the milestone to 3.11 (or whatever the current will be when you close).

Otherwise, good addition!