add all web jses (leave out the big data and asm files)

web/webworker.js

@@ -0,0 +1,25 @@
+self.languagePluginUrl = 'https://cdn.jsdelivr.net/pyodide/v0.15.0/full/'
+importScripts('./pyodide.js')
+
+var onmessage = function(e) { // eslint-disable-line no-unused-vars
+  languagePluginLoader.then(() => {
+    const data = e.data;
+    const keys = Object.keys(data);
+    for (let key of keys) {
+      if (key !== 'python') {
+        // Keys other than python must be arguments for the python script.
+        // Set them on self, so that `from js import key` works.
+        self[key] = data[key];
+      }
+    }
+
+    self.pyodide.runPythonAsync(data.python, () => {})
+        .then((results) => { self.postMessage({results}); })
+        .catch((err) => {
+          // if you prefer messages with the error
+          self.postMessage({error : err.message});
+          // if you prefer onerror events
+          // setTimeout(() => { throw err; });
+        });
+  });
+}