implemented convertUnits

src/main/java/jota/utils/IotaUnits.java

@@ -0,0 +1,29 @@
+package jota.utils;
+
+/**
+ * Created by pinpong on 30.11.16.
+ */
+public enum IotaUnits {
+    IOTA("i", 0),
+    KILO_IOTA("Ki", 3),
+    MEGA_IOTA("Mi", 6),
+    GIGA_IOTA("Gi", 9),
+    TERRA_IOTA("Ti", 12),
+    PETA_IOTA("Pi", 15);
+
+    private String unit;
+    private long value;
+
+    IotaUnits(String unit, long value) {
+        this.unit = unit;
+        this.value = value;
+    }
+
+    public String getUnit() {
+        return unit;
+    }
+
+    public long getValue() {
+        return value;
+    }
+}