[FL-2051] BadUSB: new GUI (#844)

* [FL-2051] BadUsb: new GUI
* add missing assets
* skip empty lines and leading spaces
* SubGhz: add alignment check to keystore mess with iv routine

Co-authored-by: あく <alleteam@gmail.com>

firmware/targets/furi-hal-include/furi-hal-usb-hid.h

@@ -250,6 +250,8 @@ static const uint16_t hid_asciimap[] = {
     KEY_NONE, // DEL
 };
 
+typedef void (*HidStateCallback)(bool state, void* context);
+
 /** ASCII to keycode conversion macro */
 #define HID_ASCII_TO_KEY(x) (((uint8_t)x < 128) ? (hid_asciimap[(uint8_t)x]) : KEY_NONE)
 
@@ -266,6 +268,13 @@ enum HidMouseButtons {
  */
 bool furi_hal_hid_is_connected();
 
+/** Set USB HID connect/disconnect callback
+ *
+ * @param      cb  callback
+ * @param      ctx  callback context
+ */
+void furi_hal_hid_set_state_callback(HidStateCallback cb, void* ctx);
+
 /** Set the following key to pressed state and send HID report
  *
  * @param      button  key code