* Workaround for ifNames with slashes
Basically,
/api/v0/devices/3/ports/0%2f4 -> /api/v0/devices/3/ports/ifName?ifName=0/4
/api/v0/devices/3/ports/0%2f4/port_bits -> /api/v0/devices/3/ports/ifName/port_bits?ifName=0/4
Or you can just use port_id.
* Fix API ports using ifName with slashes
hand parse the path for the ports graph endpoints
this way we can respect the original way of handling slashes (%2F)