Use webpack for bundling JS libs and move Golang code related to Iframe generation there

javascript/src/viamapi-iframe.js

@@ -1299,6 +1299,8 @@ function extendPinCodeTtl(key, pinCode) {
   return true;
 }
 
+window.extendPinCodeTtl = extendPinCodeTtl;
+
 function clearPinCodeTtl(key) {
   //console.log("Clearing ttl for key: " + key)
   window.sessionStorage.removeItem("pincodettls/" + key)
@@ -1420,6 +1422,8 @@ function executeRestfulFunction(type, that, fn, ...args) {
   }
 }
 
+window.executeRestfulFunction = executeRestfulFunction;
+
 function loadIdentityInternal(identityKey, pinCode) {
   return new Penpal.Promise(result => {
     console.log("Loading identity with pincode: " + pinCode)