GetFundamental is not Timestamped with EndTime

[AlexCatarino]

Expected Behavior

Data is timestamped with end-of-period time.

Actual Behavior

Data is timestamped with start-of-period time due to this implementation: https://github.com/QuantConnect/Lean/blob/master/Research/QuantBook.cs#L846:L850

Potential Solution

Replace Time for EndTime.

Reproducing the Problem

history = qb.History(tickers, start_date, end_date, Resolution.Daily)
ff = qb.GetFundamental(tickers, "MarketCap", start_date, end_date)

the timestamps do not match.

Checklist

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• [x] I have confirmed that this is not a duplicate issue by searching issues
• [x] I have provided detailed steps to reproduce the issue