Improvements to civicFormat

[jaronheard]

Is your feature request related to a problem? Please describe.
As a user of the civicFormat utility, there are a couple of pain points that I'd like address

1. It's hard to remember what each formatting utility does
2. The numeric and dollars utilities do a lot of rounding (1,342,043 displays as 1.3 million), and it would be nice to have those same utilities but without the rounding as an option

Describe the solution you'd like

1. exactDollars & exactNumeric utilities that display the whole numbers.
2. A story that shows the use of each civicFormat utility applied to a range of different values

Describe alternatives you've considered
You could add a custom precision, or solve for the common use cases.

Additional context
Was working on openelectionsportland.org