Added back src/ino files which will be excluded via .gitattributes instead of .gitignore

This keeps them in the reop, but excludes them from releases.

src/extras/extras.ino

@@ -0,0 +1,5 @@
+
+#error THIS IS NOT COMPILABLE CODE
+
+This is a dummy .ino file that allows you to easily edit the contents of this library using the Arduino IDE.
+The code is NOT designed to be compiled from this point.  Compile and test the library using one of the examples.

src/src.ino

@@ -0,0 +1,39 @@
+
+// This is a placeholder .ino file that allows you to easily edit the contents of this library using the Arduino IDE,
+// as well as compile and test from this point.  This file is ignored when the library is included in other sketches.
+
+#include "HomeSpan.h"
+
+void setup() {
+ 
+  Serial.begin(115200);
+ 
+  homeSpan.setLogLevel(2);
+
+  homeSpan.begin(Category::Lighting,"HomeSpan Benchmark");
+
+  new SpanAccessory();                                  // Begin by creating a new Accessory using SpanAccessory(), which takes no arguments
+
+    new Service::AccessoryInformation();                    // HAP requires every Accessory to implement an AccessoryInformation Service, which has 6 required Characteristics
+      new Characteristic::Name("HomeSpan Test");                // Name of the Accessory, which shows up on the HomeKit "tiles", and should be unique across Accessories                                                            
+      new Characteristic::Manufacturer("HomeSpan");             // Manufacturer of the Accessory (arbitrary text string, and can be the same for every Accessory)
+      new Characteristic::SerialNumber("HSL-123");              // Serial Number of the Accessory (arbitrary text string, and can be the same for every Accessory)
+      new Characteristic::Model("HSL Test");                    // Model of the Accessory (arbitrary text string, and can be the same for every Accessory)
+      new Characteristic::FirmwareRevision(HOMESPAN_VERSION);   // Firmware of the Accessory (arbitrary text string, and can be the same for every Accessory)  
+      new Characteristic::Identify();                           // Create the required Identify
+  
+    new Service::HAPProtocolInformation();                  // Create the HAP Protcol Information Service  
+      new Characteristic::Version("1.1.0");                     // Set the Version Characteristic to "1.1.0" as required by HAP
+
+    new Service::LightBulb();                               // Create the Light Bulb Service
+      new Characteristic::On();                                 // This Service requires the "On" Characteristic to turn the light on and off
+
+} // end of setup()
+
+//////////////////////////////////////
+
+void loop(){
+
+  homeSpan.poll();
+  
+} // end of loop()