initial commit of C++ back end and react front end

interface/public/app/manifest.json

@@ -0,0 +1,12 @@
+{
+  "name":"ESP8266 React",
+  "icons":[
+    {
+      "src":"/app/icon.png",
+      "sizes":"48x48 72x72 96x96 128x128 256x256"
+    }
+  ],
+  "start_url":"/",
+  "display":"fullscreen",
+  "orientation":"any"
+}