Support for fortinet (FortiOS 5.4)

[tkinet]

We used configuration files for the traffic define as "local" and "forward" as defined from the fortinet documentation for FortiOS 5.4.(https://docs.fortinet.com/product/fortigate/5.4) We defined:

• processName as "type=traffic"
• tag as "subtype=local" and "subtype=forward"

The Fortinet configuration apply : config log syslogd setting set status enable set server "Remote IP server" set reliable disable set port 514 set csv disable set facility local7 set source-ip 'One IP interface on the Fortinet'

[coveralls]

Coverage remained the same at 43.107% when pulling 4e90cf588c043ecc3c607f9a284936b77306a93e on tkinet:develop into 8850ac87d9bec67ee54cd15b9815bf84a335c12e on napalm-automation:develop.

[luke-orden]

Thanks @tkinet