Substract fee from profit calculation
Especially when using multiple pools at once, it is beneficial for profit calculation to subtract the pool fee to make choosing the right pool for an algo more reliable.

In the pool file, I added `*(1-($zergpool_Request.$_.fees/100))` after (both) divisor operations when setting the stat var:
before (ahashpool):
```
28:    if ((Get-Stat -Name "$($Name)_$($ahashpool_Algorithm)_Profit") -eq $null) {$Stat = Set-Stat -Name "$($Name)_$($ahashpool_Algorithm)_Profit" -Value ([Double]$ahashpool_Request.$_.estimate_last24h / $Divisor)}
29:    else {$Stat = Set-Stat -Name "$($Name)_$($ahashpool_Algorithm)_Profit" -Value ([Double]$ahashpool_Request.$_.estimate_current / $Divisor)}
```
after:
```
28:    if ((Get-Stat -Name "$($Name)_$($ahashpool_Algorithm)_Profit") -eq $null) {$Stat = Set-Stat -Name "$($Name)_$($ahashpool_Algorithm)_Profit" -Value ([Double]$ahashpool_Request.$_.estimate_last24h / $Divisor *(1-($ahashpool_Request.$_.fees/100)))}
29:    else {$Stat = Set-Stat -Name "$($Name)_$($ahashpool_Algorithm)_Profit" -Value ([Double]$ahashpool_Request.$_.estimate_current / $Divisor *(1-($ahashpool_Request.$_.fees/100)))}
```

I have only tested this with ahashpool and zergpool, I do not know if other pools also provide fee data.