reorganize toxic_windows.h into two separate header files, rename main.c to toxic.c

src/audio_call.h

@@ -1,5 +1,23 @@
-/*
- * Toxic -- Tox Curses Client
+/*  audio_call.h
+ *
+ *
+ *  Copyright (C) 2014 Toxic All Rights Reserved.
+ *
+ *  This file is part of Toxic.
+ *
+ *  Toxic is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Toxic is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with Toxic.  If not, see <http://www.gnu.org/licenses/>.
+ *
  */
 
 #ifndef _audio_h
@@ -7,6 +25,9 @@
 
 #include <tox/toxav.h>
 
+#include "toxic.h"
+#include "windows.h"
+
 #define MAX_DEVICES 32
 
 typedef enum _AudioError {