feat(device model component): add device model component to create model file

Author: eriolchan

.gitignore

@@ -1,4 +1,4 @@
 out
 node_modules
-dist
-.vscode-test
+.vscode-test
+cache

assets/modelRepository/command.js

@@ -0,0 +1,43 @@
+const callbackStack = [];
+const vscode = acquireVsCodeApi();
+
+function command(cmd, callback) {
+  if (!cmd) {
+    return;
+  }
+  let args = Array.from(arguments);
+  if (typeof args[args.length - 1] === 'function') {
+    callback = args[args.length - 1];
+    args.length = args.length - 1;
+  } else {
+    callback = undefined;
+  }
+  args.shift();
+  const messageId = new Date().getTime() + Math.random();
+  
+  callbackStack.push({
+    messageId,
+    callback
+  });
+
+  vscode.postMessage({
+    messageId,
+    command: cmd,
+    parameter: args
+  });
+}
+
+window.addEventListener('message', event => {
+  const message = event.data;
+
+  for (let index = 0; index < callbackStack.length; index++) {
+    const callbackItem = callbackStack[index];
+    if (callbackItem.messageId === message.messageId) {
+      if (callbackItem.callback) {
+        callbackItem.callback(message.payload);
+      }
+      callbackStack.splice(index, 1);
+      break;
+    }
+  }
+});