Changes to SNMP Interfaces

[rwtalbot]

SNMP Interfaces presently takes IP addresses or FQDN's and stores this in the database. For large sites such as ours would be:

*Display FQDN and IP address when viewing SNMP interfaces
*Sort by IP address or FQDN (sort from the rhs of the FQDN)
*Store IP address in the database and use it for polling. Otherwise DNS outages will stop the polling
*Support for heirachies or categories to divide different networks up.