FindMeFollow API - must pass ALL params when adding

at present, the FindMeFollowMe api is able to create/set an extension's findmefollowme settings as (Delete the settings, create new ones)

Example:

HTTP PUT:  rest_url/findmefollow/users/4128
 {
"id":"4128",
"strategy": "ringallv2-prim",
"grplist":"4128-1234567890#",
"ddial": "",
"grpnum": "4128",
"grptime": "20",
"grppre": "",
"annmsg_id": null,
"postdest": "ext-local,
4128,dest","dring": "",
"needsconf": "",
"remotealert_id": null,
"toolate_id": null,
"ringing": "Ring",
"pre_ring": "7",
"voicemail": "default",
"calendar_enable": "0",
"calendar_id": "",
"calendar_group_id": "",
"calendar_match": "yes",
"rvolume": "",
"changecid": "default",
"fixedcid": ""
}

Feature Request:   update this API with default values such that you can pass in the "non-default" params you want, and not require a Full set of settings.

{{

{"id":"4128","strategy": "ringallv2-prim","grplist":"4128-1234567890#","ddial": "",}

}}