[Enhancement Request] Add ability to display region price always rounding up/down

[farum12]

As a server admin, I want to have the ability to set up Price Format in ARM, so it will be always rounded up/down, without a float number after the comma.

Background info:
Our server has item based economy, every price (ARM and non-ARM related) is a decimal number. Our economy plugin rounds up every plugin-related price:

• 6.2 -> 7
• 6.8 -> 7

ARM has an option in the config called "maximumFractionDigits", but it rounds up/down depending on the number:

• 6.2 -> 6 (but still this price is considered as 7 by the Economy plugin, as the floating point is rounded up)
• 6.8 -> 7

This inconsistency could be solved by config option like "roundingMethod" with ability to set as "up" "down" "normal" (where normal is current method.