Initial emulation of the IBM 8514/A coprocessor for both the MCA and ISA buses.

Currently the GUI option is on the QT frontend.

src/config.c

@@ -924,6 +924,7 @@ load_video(void)
     }
 
     voodoo_enabled = !!config_get_int(cat, "voodoo", 0);
+    ibm8514_enabled = !!config_get_int(cat, "8514a", 0);
 }
 
 
@@ -2457,6 +2458,11 @@ save_video(void)
       else
 	config_set_int(cat, "voodoo", voodoo_enabled);
 
+    if (ibm8514_enabled == 0)
+	config_delete_var(cat, "8514a");
+      else
+	config_set_int(cat, "8514a", ibm8514_enabled);
+
     delete_section_if_empty(cat);
 }