Bug fixes for Issue 57

[saurabhtalreja]

Bug Fix for Issue - https://github.com/moshekaplan/palo_alto_firewall_analyzer/issues/57

Fixes :

• Static-Ip doesn't have nested member object in consolidatable_addresses_and_groups
• Checking if member_to_replace present in service_to_replacement before directly querying dictionary in consolidatable_service_and_groups