Add support for 8Bitdo 64 Bluetooth Controller (#1271)

Author: daniellandau

udev/8Bitdo_64_Bluetooth_Controller.cfg

@@ -0,0 +1,25 @@
+input_driver = "udev"
+input_device = "8BitDo 8BitDo 64 Bluetooth Controller"
+input_device_display_name = "8BitDo 64 Bluetooth Controller"
+input_vendor_id = "11720"
+input_product_id = "12313"
+input_b_btn = "0"
+input_start_btn = "11"
+input_up_btn = "h0up"
+input_down_btn = "h0down"
+input_left_btn = "h0left"
+input_right_btn = "h0right"
+input_l_btn = "6"
+input_r_btn = "7"
+input_l2_btn = "8"
+input_r2_btn = "9"
+input_l_x_plus_axis = "+0"
+input_l_x_minus_axis = "-0"
+input_l_y_plus_axis = "+1"
+input_l_y_minus_axis = "-1"
+input_r_y_plus_axis = "+3"
+input_r_y_minus_axis = "-3"
+input_y_btn = "1"
+input_r_x_plus_axis = "+2"
+input_r_x_minus_axis = "-2"
+input_menu_toggle_btn = "12"