Filter results of GetObject
Filter results of GetObject

GetObject should only return the services (with their interfaces)
that provide the interface passed in.

Change-Id: I76ca7be85c7f2da4cc66d865a671c27504cb8061
Signed-off-by: Matt Spinler <c000c989d08c98662d98f15448f11de169feb92d@us.ibm.com>

openbmc/phosphor-objmgr,openbmc/phosphor-objmgr