Made first argument of homeSpan.begin() optional

Default is Category::Lighting

src/HomeSpan.h

@@ -105,7 +105,7 @@ struct Span{
 
   HapCharList chr;                                  // list of all HAP Characteristics
 
-  void begin(Category catID,
+  void begin(Category catID=DEFAULT_CATEGORY,
              char *displayName=DEFAULT_DISPLAY_NAME,
              char *hostNameBase=DEFAULT_HOST_NAME,
              char *modelName=DEFAULT_MODEL_NAME);        

src/Settings.h

@@ -38,6 +38,7 @@
 //////////////////////////////////////////////////////
 //                DEFAULT SETTINGS                  //  
 
+#define     DEFAULT_CATEGORY          Category::Lighting  // change with optional first argument in homeSpan.begin()
 #define     DEFAULT_DISPLAY_NAME      "HomeSpan Server"   // change with optional second argument in homeSpan.begin()
 #define     DEFAULT_HOST_NAME         "HomeSpan"          // change with optional third argument in homeSpan.begin()
 #define     DEFAULT_MODEL_NAME        "HomeSpan-ESP32"    // change with optional fourth argument in homeSpan.begin()

src/src.ino

@@ -10,7 +10,7 @@ void setup() {
  
   homeSpan.setLogLevel(2);
 
-  homeSpan.begin(Category::Lighting,"HomeSpan Benchmark");
+  homeSpan.begin();
 
   new SpanAccessory();                                  // Begin by creating a new Accessory using SpanAccessory(), which takes no arguments