Fix for windows build process

clean.js

@@ -0,0 +1,20 @@
+/** 
+ * Part of the build script because windows doesn't have rm -rf and npm doesn't have conditionals
+*/
+const exec = require('child_process').exec;
+const os = require('os');
+function done(error, stdout, stderr) {
+  if (error) {
+    console.error(`exec error: ${error}`);
+    return;
+  }
+  console.log(`stdout: ${stdout}`);
+  console.log(`stderr: ${stderr}`);
+  console.log("All done cleaning dist");
+}
+
+if(os.platform() == "win32"){
+    exec("if exist \"dist\" rd /S/Q dist",done);
+}else{
+     exec("rm -rf ./dist/*",done);
+}