[NTOS]: Add DRIVER_CAUGHT_MODIFYING_FREED_POOL bugcheck code.

[NTOS]: Add DRIVER_CAUGHT_MODIFYING_FREED_POOL bugcheck code.
[NTOS]: Add support for protected freed nonpaged pool. This is controlled through MmProtectFreedNonPagedPool, which is initialized based on a registry value (see cmdata.c). This is not "Special Pool", but a useful debugging feature Windows implements that we now have too, since I noticed a lot of mj's work was with freed pool access.
NB. It's 3AM and I have not tested this, it should be off in trunk by default, you'll need to try turning it on and testing it. Hope it helps.
--This line, and those low, will be ignored--

M    ntoskrnl/mm/ARM3/pagfault.c
M    ntoskrnl/mm/ARM3/pool.c
M    include/reactos/mc/bugcodes.mc

svn path=/trunk/; revision=48649