Switch plugin API to use an accumulator

accumulator.go

@@ -0,0 +1,17 @@
+package tivan
+
+import "github.com/influxdb/influxdb/client"
+
+type BatchPoints struct {
+	client.BatchPoints
+}
+
+func (bp *BatchPoints) Add(name string, val interface{}, tags map[string]string) {
+	bp.Points = append(bp.Points, client.Point{
+		Name: name,
+		Tags: tags,
+		Fields: map[string]interface{}{
+			"value": val,
+		},
+	})
+}