[dNDX Parameters] Maximum Bonus Multiplier

Per discussion from this thread: https://forum.indexed.finance/t/create-dndx-a-dividends-token-for-indexed-fee-revenue/610

This vote is to establish the bonus multiplier of dNDX issued when staking NDX for the maximum duration. When deposits are made, the depositor will receive a bonus multiplier calculated with the formula:

max_bonus_multiplier * (lock_duration - min_lock_duration) / (max_lock_duration - min_lock_duration)

So for example if we have min_lock_duration = 1, max_lock_duration = 3, max_bonus_multiplier = 2, then a deposit with duration 2 would get a bonus multiplier of 1, so 2 dNDX would be minted for every 1 NDX deposited.

The options are:

1. 2.5x
2. 3x
3. Reject above options

If any of the [dNDX Parameters] votes are won by 'Reject above options', deployment of the dNDX functionality will be paused and a new forum thread opened to discuss alternative options.