Update to fix saving issue with Dungeon Keeper Gold and Deeper Dungeon

[trotsky40]

Added an empty "SAVE" folder to fix in-game saving and added cpu_max_year: 1998 to prevent occasional speed ups

[trotsky40]

Addresses #548

[PureDOS]

Would it be better if the "SAVE" folder were added to the DAT?

[trotsky40]

We didn’t think the DAT could generate an empty folder. If it can, I can rework the PR.

[PureDOS]

An empty save folder can easily be added to the dat with

		<rom name="SAVE/" size="0" crc="00000000" md5="d41d8cd98f00b204e9800998ecf8427e" sha1="da39a3ee5e6b4b0d3255bfef95601890afd80709"/>

So having a / at the end of the name there means it defines a folder. This is used to create empty folders but also to have folders created with a specific date/time stamp if applicable (by also adding the date field). There's quite a few like these in the DAT file we have.

[trotsky40]

Copy. I will rework it.

[trotsky40]

Moved the save folder to the dat