Added copyright headers for files coming from FCEU.

I'm mostly unsure about those one :)
Again, feel free to update them.

desmume/src/movie.cpp

@@ -1,3 +1,24 @@
+/* movie.cpp
+ *
+ * Copyright (C) 2006-2008 Zeromus
+ *
+ * This file is part of DeSmuME
+ *
+ * DeSmuME 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DeSmuME 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 DeSmuME; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
+*/
+
 #include <assert.h>
 #include <limits.h>
 #include <fstream>

desmume/src/readwrite.cpp

@@ -1,3 +1,24 @@
+/* readwrite.cpp
+ *
+ * Copyright (C) 2006-2008 Zeromus
+ *
+ * This file is part of DeSmuME
+ *
+ * DeSmuME 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DeSmuME 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 DeSmuME; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
+*/
+
 #include "readwrite.h"
 #include "types.h"
 

desmume/src/utils/guid.cpp

@@ -1,3 +1,24 @@
+/* guid.cpp
+ *
+ * Copyright (C) 2008 Zeromus
+ *
+ * This file is part of DeSmuME
+ *
+ * DeSmuME 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DeSmuME 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 DeSmuME; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
+*/
+
 #include <stdlib.h>
 #include "guid.h"
 #include "../types.h"

desmume/src/windows/aviout.cpp

@@ -1,3 +1,24 @@
+/* aviout.cpp
+ *
+ * Copyright (C) 2006-2008 Zeromus
+ *
+ * This file is part of DeSmuME
+ *
+ * DeSmuME 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DeSmuME 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 DeSmuME; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
+*/
+
 #include "types.h"
 #include "windriver.h"
 #include "console.h"

desmume/src/windows/ogl.cpp

@@ -1,3 +1,24 @@
+/* ogl.cpp
+ *
+ * Copyright (C) 2006-2008 Zeromus
+ *
+ * This file is part of DeSmuME
+ *
+ * DeSmuME 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DeSmuME 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 DeSmuME; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
+*/
+
 #define WIN32_LEAN_AND_MEAN
 #include "../common.h"
 #include "../debug.h"
@@ -74,4 +95,4 @@ bool windows_opengl_init()
 	oglAlreadyInit = true;
 
 	return true;
-}
+}