Move core and audio files to the src directory

To allow ArduboyCore and ArduboyAudio to be used as public base classes.
Changed the file names to match the names of the classes they contain.

src/Arduboy2.h

@@ -1,7 +1,7 @@
-#ifndef Arduboy2_h
-#define Arduboy2_h
+#ifndef ARDUBOY2_H
+#define ARDUBOY2_H
 
-#include "core/core.h"
+#include "ArduboyCore.h"
 #include <Print.h>
 #include <limits.h>
 
@@ -20,7 +20,7 @@
 #define EEPROM_STORAGE_SPACE_START 16 // and onward
 
 // eeprom settings above are neded for audio
-#include "audio/audio.h"
+#include "ArduboyAudio.h"
 
 #define PIXEL_SAFE_MODE
 

src/ArduboyAudio.cpp

@@ -1,5 +1,5 @@
 #include "Arduboy2.h"
-#include "audio.h"
+#include "ArduboyAudio.h"
 
 bool ArduboyAudio::audio_enabled = false;
 

src/ArduboyAudio.h

@@ -1,5 +1,5 @@
-#ifndef ArduboyAudio_h
-#define ArduboyAudio_h
+#ifndef ARDUBOY_AUDIO_H
+#define ARDUBOY_AUDIO_H
 
 #include <Arduino.h>
 #include <EEPROM.h>

src/ArduboyCore.cpp

@@ -1,4 +1,4 @@
-#include "core.h"
+#include "ArduboyCore.h"
 
 // need to redeclare these here since we declare them static in .h
 volatile uint8_t *ArduboyCore::csport, *ArduboyCore::dcport;

src/ArduboyCore.h

@@ -1,5 +1,5 @@
-#ifndef ArduboyCore_h
-#define ArduboyCore_h
+#ifndef ARDUBOY_CORE_H
+#define ARDUBOY_CORE_H
 
 #include <avr/power.h>
 #include <SPI.h>