Added basic PC/SC (WinSCard) smartcard support. (0.17.0)

examples/pcsc_example.fun

@@ -0,0 +1,14 @@
+#!/usr/bin/env fun
+
+// Minimal PCSC example for Fun language
+// Establish context and list readers (prints [] if none or unsupported)
+
+class Pcsc()
+  fun list_readers(this)
+    ctx = pcsc_establish()
+    readers = pcsc_list_readers(ctx)
+    print(readers)
+    _ = pcsc_release(ctx)
+
+p = Pcsc()
+p.list_readers()