[BUG] VersusEnterAndHoldCriterion should use 'amount' to match comparsion

[Cashmeiser]

I have checked existing issues and wiki

• I could not find similar issues
• I could not find a solution in the wiki or faq section

Describe the bug
When running a Backtest with BarSeriesManager a amount is provided and used as the quantity of each trade.
When running a VersusEnterAndHoldCriterion it always uses 1 as the amount (or quantity) for the buy and sell trade.
If comparing with a non-percentage criterion it will be a non-useful comparison.

Lets see an example:
Run a backtest with BarSeriesManager with amount 10 (quantity).
Then run a new VersusEnterAndHoldCriterion(new ProfitLossCriterion()).calculate(barSeries, tradingRecord)
and it will produce a value 10 times greater than it actually is, due to not creating the "enter and hold" with same amount (quantity).

To Reproduce
Steps to reproduce the behavior:

1. Run a backtest with BarSeriesManager and use amount=10 and assign result to variable tradingRecordTen
2. Run a new backtest with BarSeriesManager and use amount=1 and assign result to variable tradingRecordOne
3. Run new VersusEnterAndHoldCriterion(new ProfitLossCriterion()).calculate(barSeries, tradingRecordTen) and compare result when you run new VersusEnterAndHoldCriterion(new ProfitLossCriterion()).calculate(barSeries, tradingRecordOne).
4. Be amazed that the higher quantity used, the better you are than Buy and Hold

Expected behavior
Expect that VersusEnterAndHoldCriterion comparison should give same result no matter what amount is used per trade, since I expect enter and hold always uses same amount as its compared to.