New 'hb objsizes' command
New 'hb objsizes' command

Change-Id: I6693c0d70170794f448f29165266732f8e6d2682
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/246
Tested-by: Jenkins Server
Reviewed-by: CAMVAN T. NGUYEN <6ef8968941407f71237596b07aac3e0f61970ea0@us.ibm.com>

Over-enthusiastic/hostboot,alvintpwang/hostboot,Over-enthusiastic/hostboot,alvintpwang/hostboot,csmart/hostboot,open-power/hostboot,Over-enthusiastic/hostboot,alvintpwang/hostboot,open-power/hostboot,csmart/hostboot,open-power/hostboot,open-power/hostboot,alvintpwang/hostboot,Over-enthusiastic/hostboot,Over-enthusiastic/hostboot,open-power/hostboot,csmart/hostboot,csmart/hostboot,alvintpwang/hostboot,csmart/hostboot