Add jitter support to netem qos parameters

[lime008]

Adds jitter parameter and annotation support for the netem QoS options.

[hongzhen-ma]

@lime008 Thanks very much for the PR.

Api in windows build also need to be adapted

pkg/daemon/controller_windows.go:217: too many arguments in call to ovs.SetNetemQos
	have (string, string, string, string, string, string, string)
	want (string, string, string, string, string, string)

[lime008]

The windows api should now also be adapted to include the jitter parameter.