Add micro, nano prefix to Energy unit Joule (#1316)

Hello,

For the correct display of the values of our laser energy meters we are
currently missing the prefixes micro and nano for the unit joule.

It would be nice if this could be added.

Many thanks

Author: pliebe91

Common/UnitDefinitions/Energy.json

@@ -18,7 +18,7 @@
       },
       "FromUnitToBaseFunc": "{x}",
       "FromBaseToUnitFunc": "{x}",
-      "Prefixes": [ "Milli", "Kilo", "Mega", "Giga", "Tera", "Peta" ],
+      "Prefixes": [ "Nano", "Micro", "Milli", "Kilo", "Mega", "Giga", "Tera", "Peta" ],
       "Localization": [
         {
           "Culture": "en-US",

Common/UnitEnumValues.g.json

@@ -433,7 +433,9 @@
     "WattDay": 35,
     "WattHour": 36,
     "Petajoule": 43,
-    "Terajoule": 37
+    "Terajoule": 37,
+    "Microjoule": 47,
+    "Nanojoule": 45
   },
   "Entropy": {
     "CaloriePerKelvin": 1,

UnitsNet.NanoFramework/GeneratedCode/Quantities/Energy.g.cs

@@ -1,4 +1,4 @@
-// Licensed under MIT No Attribution, see LICENSE file at the root.
+// Licensed under MIT No Attribution, see LICENSE file at the root.
 // Copyright 2013 Andreas Gullberg Larsen ([email protected]). Maintained at https://github.com/angularsen/UnitsNet.
 
 using System;
@@ -42,6 +42,10 @@ public class EnergyTests : EnergyTestsBase
 
         protected override double MillijoulesInOneJoule => 1000;
 
+        protected override double MicrojoulesInOneJoule => 1E6;
+
+        protected override double NanojoulesInOneJoule => 1E9;
+
         protected override double TerawattHoursInOneJoule => 2.77777778e-16;
 
         protected override double TerawattDaysInOneJoule => 1.157407407407410E-17;