Implementation of a new jtag remote_bitbang driver.

The driver sends ascii encoded bitbang commands over unix sockets or TCP to
another process. This driver is useful for debugging software running on
processors which are being simulated.

src/jtag/interfaces.c

@@ -97,6 +97,9 @@ extern struct jtag_interface armjtagew_interface;
 #if BUILD_BUSPIRATE == 1
 extern struct jtag_interface buspirate_interface;
 #endif
+#if BUILD_REMOTE_BITBANG == 1
+extern struct jtag_interface remote_bitbang_interface;
+#endif
 #endif // standard drivers
 
 /**
@@ -163,6 +166,9 @@ struct jtag_interface *jtag_interfaces[] = {
 #if BUILD_BUSPIRATE == 1
 		&buspirate_interface,
 #endif
+#if BUILD_REMOTE_BITBANG == 1
+		&remote_bitbang_interface,
+#endif
 #endif // standard drivers
 		NULL,
 	};