PLT-6763 Implement user access tokens and new roles (server-side) (#6972)

* Implement user access tokens and new roles

* Update config.json

* Add public post permission to apiv3

* Remove old comment

* Fix model unit test

* Updates to store per feedback

* Updates per feedback from CS

api4/params.go

@@ -20,6 +20,7 @@ type ApiParams struct {
 	UserId         string
 	TeamId         string
 	InviteId       string
+	TokenId        string
 	ChannelId      string
 	PostId         string
 	FileId         string
@@ -60,6 +61,10 @@ func ApiParamsFromRequest(r *http.Request) *ApiParams {
 		params.InviteId = val
 	}
 
+	if val, ok := props["token_id"]; ok {
+		params.TokenId = val
+	}
+
 	if val, ok := props["channel_id"]; ok {
 		params.ChannelId = val
 	}