Block reward changes

[mattpass]

Tweaks need to be made to the block rewards and we're informed it's within the GetBlockSubsidy function, which should be here:

https://github.com/BTCPrivate/BitcoinPrivate/blob/6c8ed84c5185fa522b57e08d1494bab2020da39a/src/main.cpp#L1419-L1454

[mattpass]

Notes courtesy of Littlefoot also:

Halving interval i think is in https://github.com/BTCPrivate/BitcoinPrivate/blob/master/src/chainparams.cpp#L311 and so is the diff bomb

Looks like this would have to be changed before any merge too michaelotis@1f0262b

[mattpass]

I have been advised and so noting it here that we should perform lengthy calculations on the block reward change to be sure it’s properly set up to coincide with lifetime supply.