MdeModule PeiCore: Support pre memory page allocation
    
    Support pre memory page allocation.
    Support FreePages.
    Allocation made prior to permanent memory will be
    migrated to permanent memory and the HOB updated.
    
    Cc: Liming Gao <liming.gao@intel.com>
    Cc: Ruiyu Ni <Ruiyu.Ni@intel.com>
    Contributed-under: TianoCore Contribution Agreement 1.1
    Signed-off-by: Star Zeng <star.zeng@intel.com>
    Reviewed-by: Liming Gao <liming.gao@intel.com>