Tentative for a fix for #148
Tentative for a fix for #148

By calling the filter twice, we can have the ignorelist filtering
both by name AND by arn.
To ignore AWS default policies, enter the following in 'prefix':
arn:aws:iam::aws:policy/

bunjiboys/security_monkey,markofu/security_monkey,stackArmor/security_monkey,markofu/security_monkey,stackArmor/security_monkey,stackArmor/security_monkey,Netflix/security_monkey,Netflix/security_monkey,bunjiboys/security_monkey,Netflix/security_monkey,markofu/security_monkey,Netflix/security_monkey,markofu/security_monkey,markofu/security_monkey,bunjiboys/security_monkey,bunjiboys/security_monkey,stackArmor/security_monkey,Netflix/security_monkey,stackArmor/security_monkey,bunjiboys/security_monkey