More Rtl tests

[Luca1991]

Sorry for the delay. So:

Currently, all AV Tests are disabled due to a mistake that cause cxbx to crash. I'll try to fix the address soon.

Added these Rtl Tests:

• RtlCharToInteger
• RtlCopyString
• RtlEqualString (currently disabled because not working on my real xbox)
• RtlEqualUnicodeString
• RtlFreeUnicodeString
• RtlInitUnicodeString

My next step is to fix the AV tests, the RtlEqualString and then continue with Rtl tests implementation.

PS: Just for reference, Cxbx currently fails on RtlCompareMemoryUlong and RtlEqualUnicodeString

[PatrickvL]

RtlCompareMemoryUlong is fixed now