FIrst steps towards file serving with spiffs,

but need to implement remote replace of spiffs files.

data/index.html

@@ -0,0 +1,41 @@
+<H1>SPIFF!abb</H1>
+<form name='loginForm'>
+    <table width='20%' bgcolor='A09F9F' align='center'>
+        <tr>
+            <td colspan=2>
+                <center><font size=4><b>ESP32 Login Page</b></font></center>
+                <br>
+            </td>
+            <br>
+            <br>
+        </tr>
+        <td>Username:</td>
+        <td><input type='text' size=25 name='userid'><br></td>
+        </tr>
+        <br>
+        <br>
+        <tr>
+            <td>Password:</td>
+            <td><input type='Password' size=25 name='pwd'><br></td>
+            <br>
+            <br>
+        </tr>
+        <tr>
+            <td><input type='submit' onclick='check(this.form)' value='Login'></td>
+        </tr>
+    </table>
+</form>
+<script>
+    function check(form)
+    {
+    if(form.userid.value=='admin' && form.pwd.value=='admin')
+    {
+    window.open('/serverIndex')
+    }
+    else
+    {
+     alert('Error Password or Username')/*displays error message*/
+    }
+    }
+</script>;
+