ole32: Add tests for WdtpInterfacePointer_* functions.

[Juan Lang]

Hi Rob,

+        ok(*(DWORD *)wireip == 0x44, "wireip + 0x0 should be 0x4c
instead of 0x%08x\n", *(DWORD *)wireip);
+        wireip += sizeof(DWORD);
+        ok(*(DWORD *)wireip == 0x44, "wireip + 0x8 should be 0x4c
instead of 0x%08x\n", *(DWORD *)wireip);

Shouldn't these be "should be 0x44 instead of..."?
--Juan