Establish support for Bathroom Epiphanies Tiger Lily controller

Replacement controller for Filco Majestouch 2 104 key keyboard. BE
advises code will also work with the Black Petal controller - I don't
have one to test with. Tests working perfectly on my Filco.

keyboards/tiger_lily/tiger_lily.c

@@ -0,0 +1,63 @@
+#include "tiger_lily.h"
+
+void matrix_init_kb(void) {
+    // put your keyboard start-up code here
+    // runs once when the firmware starts up
+
+    matrix_init_user();
+}
+
+void matrix_scan_kb(void) {
+    // put your looping keyboard code here
+    // runs every cycle (a lot)
+
+    matrix_scan_user();
+}
+
+bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
+    // put your per-action keyboard code here
+    // runs for every action, just before processing by the firmware
+
+    return process_record_user(keycode, record);
+}
+
+void led_set_kb(uint8_t usb_led) {
+    DDRB |= (1<<7);
+    DDRC |= (1<<5) | (1<<6);
+
+    print_dec(usb_led);
+
+    if (usb_led & (1<<USB_LED_NUM_LOCK))
+        PORTC &= ~(1<<5);
+    else
+        PORTC |=  (1<<5);
+
+    if (usb_led & (1<<USB_LED_SCROLL_LOCK))
+        PORTB &= ~(1<<7);
+    else
+        PORTB |=  (1<<7);
+
+    if (usb_led & (1<<USB_LED_CAPS_LOCK))
+        PORTC &= ~(1<<6);
+    else
+        PORTC |=  (1<<6);
+
+    led_set_user(usb_led);
+}
+
+__attribute__ ((weak))
+void matrix_init_user(void) {
+}
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {
+}
+
+__attribute__ ((weak))
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  return true;
+}
+
+__attribute__ ((weak))
+void led_set_user(uint8_t usb_led) {
+}