Update api formats to sync with fortigate 5.4.1
Update api formats to sync with fortigate 5.4.1

1. 5.4.1 API: HTTP GET/DELETE requests do not accept body data.
2. Move all filters paramters to uri from http body in http PUT requests.
3. remove unused ADD_VDOM_LNK_INTERFACE

Change-Id: Ice437f5970993844fd49f521adcd39af570b3179

openstack/networking-fortinet,openstack/networking-fortinet