IQ store free list

The IQ store free list maps disk blocks in use by the database. sp_iqsysmon generates main (Table A-9) and temporary (Table A-10) free list statistics for the IQ store. Statistic names are sorted alphabetically.

**Table A-9: IQ store main free list statistics**
FLBitCount	FLIsOutOfSpace
FLMutexLocks	FLMutexWaits

**Table A-10: IQ store temporary free list**
FLBitCount	FLIsOutOfSpace
FLMutexLocks	FLMutexWaits