If we have a very large value, we immediately increase the size of the log file to match it.
Don't automatically increase the log size the first time
Start with a much smaller log file size.
Adding more tests
Revert "support for writing values that are greater than journal file size"

This reverts commit f761b0a084a4fc026cd8dc02fda64f9df700b426.

Conflicts:

	Voron.Tests/Storage/SplittingVeryBig.cs
	Voron/Impl/Journal/WriteAheadJournal.cs
	Voron/Util/MultiBytePointer.cs
	Voron/Voron.csproj
Moving back to continuous space in the logs, we'll simply create a very big log file when we need to for very large values.
Adding failing tests
Fixin problem at restart where we would skip a transacton
Refactoring storage setup