Rename 'base' to 'default'

Moves Eagleheardt's base layout to the default one for the Org60.  Also changed to use the right header file.

keyboards/org60/keymaps/base/keymap.c → keyboards/org60/keymaps/default/keymap.c

@@ -1,4 +1,4 @@
-#include "xd60.h"
+#include "org60.h"
 #include "action_layer.h"
 
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
@@ -43,4 +43,4 @@ const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt) {
 // Loop
 void matrix_scan_user(void) {
   // Empty
-};
+};