add card connect support (#923)

There are no servers to test this, but:

* touch, touch with mouse
* in theory card reader should work
* printer works (RGB, front and back)
* test/service button, lights

What is (painfully) missing:
* windowed mode

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

src/spice2x/games/cardconnect/printer.h

@@ -0,0 +1,6 @@
+#pragma once
+
+namespace games::cardconnect {
+    extern bool PRINTER_DISABLED;
+    void printer_attach();
+}