[PATCH] dtrace probes for memory manager

Attached patch contains new dtrace probes for memory management. Main
purpose is to analyze memory footprint - for example how many memory
needs transaction, peak memory per context, when memory block is reused
or when it is allocate by malloc and so on.

There are three groups of probes:

1) general memory context operation:

mcxt-alloc
mcxt-create
mcxt-delete
mcxt-free
mcxt-realloc
mcxt-reset

2) AllocSet operations (called from mcxt)

aset-alloc
aset-delete
aset-free
aset-realloc
aset-reset

3) AllocSet Block operations.

aset-block-free
aset-block-new
aset-block-realloc
aset-block-reset


	Zdenek