Major commit, cleaning a lot of old stuff.

IBM.H is gone, video stuff re-organized. Keyboard stuff reorganized.
Machines that have their own video, mouse and/or keyboard now have all this in their machine file.
Fixed and other cleanups here and there.

src/machine/m_at_commodore.c

@@ -0,0 +1,51 @@
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include <wchar.h>
+#include "../86box.h"
+#include "../io.h"
+#include "../lpt.h"
+#include "../serial.h"
+#include "machine.h"
+
+
+static void cbm_io_write(uint16_t port, uint8_t val, void *p)
+{
+        lpt1_remove();
+        lpt2_remove();
+        switch (val & 3)
+        {
+                case 1:
+                lpt1_init(0x3bc);
+                break;
+                case 2:
+       	        lpt1_init(0x378);
+                break;
+                case 3:
+                lpt1_init(0x278);
+                break;
+        }
+        switch (val & 0xc)
+        {
+                case 0x4:
+                serial_setup(1, 0x2f8, 3);
+                break;
+                case 0x8:
+                serial_setup(1, 0x3f8, 4);
+                break;
+        }
+}
+
+static void cbm_io_init()
+{
+        io_sethandler(0x0230, 0x0001, NULL,NULL,NULL, cbm_io_write,NULL,NULL, NULL);
+}
+
+
+void
+machine_at_cmdpc_init(machine_t *model)
+{
+	machine_at_ide_top_remap_init(model);
+
+	cbm_io_init();
+}