Misc fixes, mostly related to no-joycon controls

source/hid/hid.c

@@ -98,4 +98,9 @@ Inputs *hidWait(){
     while (!(in->buttons))
         hidRead();
     return in;
+}
+
+bool hidConnected(){
+    jc_gamepad_rpt_t *controller = joycon_poll();
+    return (controller->conn_l && controller->conn_r) ? 1 : 0;
 }

source/hid/hid.h

@@ -51,4 +51,5 @@ typedef struct _inputs {
 void hidInit();
 Inputs *hidRead();
 Inputs *hidWait();
-Inputs *hidWaitMask(u32 mask);
+Inputs *hidWaitMask(u32 mask);
+bool hidConnected();