Implement RtlConcatenateString(), RtlReverseString() and RtlTokenizeString() routines

xtoskrnl/xtoskrnl.spec

@@ -36,6 +36,7 @@
 @ cdecl RtlCompareStringInsensitive(str str long)
 @ cdecl RtlCompareWideString(wstr wstr long)
 @ cdecl RtlCompareWideStringInsensitive(wstr wstr long)
+@ stdcall RtlConcatenateString(str str long)
 @ cdecl RtlConcatenateWideString(wstr wstr long)
 @ stdcall RtlConvertToLargeInteger32(long)
 @ stdcall RtlConvertToLargeIntegerUnsigned32(long)
@@ -47,10 +48,12 @@
 @ stdcall RtlReadRegisterByte(ptr)
 @ stdcall RtlReadRegisterLong(ptr)
 @ stdcall RtlReadRegisterShort(ptr)
+@ stdcall RtlReverseString(str long)
 @ stdcall RtlSameMemory(ptr ptr long)
 @ stdcall RtlSetMemory(ptr long long)
 @ cdecl RtlStringLength(str long)
 @ cdecl RtlStringToWideString(wstr str long)
+@ stdcall RtlTokenizeString(str str str)
 @ cdecl RtlTokenizeWideString(wstr wstr wstr)
 @ cdecl RtlTrimLeftString(str)
 @ cdecl RtlTrimRightString(str)