add custom visualize bullshit.

- LEDs reflect layer for the most part. the custom RESET layer i added
  doesn't work because I don't know the specific layer signal(?) to
  reference in visualizer.c
- make sure you add the idiot rules.mk or whatever. that's important.
- only have master side working; slave side isn't getting proper
  update for some reason.

keyboards/ergodox_infinity/keymaps/josiah/rules.mk

@@ -0,0 +1,5 @@
+VISUALIZER_ENABLE = yes
+LCD_ENABLE = yes
+LED_ENABLE = no
+LCD_BACKLIGHT_ENABLE = yes
+

keyboards/ergodox_infinity/keymaps/josiah/visualizer.c

@@ -0,0 +1,37 @@
+/*
+Copyright 2017 Fred Sundvik
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "simple_visualizer.h"
+
+// This function should be implemented by the keymap visualizer
+// Don't change anything else than state->target_lcd_color and state->layer_text as that's the only thing
+// that the simple_visualizer assumes that you are updating
+// Also make sure that the buffer passed to state->layer_text remains valid until the previous animation is
+// stopped. This can be done by either double buffering it or by using constant strings
+static void get_visualizer_layer_and_color(visualizer_state_t* state) {
+    uint8_t saturation = 255;
+    uint8_t brightness = 0;
+    if (state->status.layer & 0x4) {
+        state->target_lcd_color = LCD_COLOR(0, saturation, 0xFF);
+        state->layer_text = "jlj-mouse";
+    }
+    else if (state->status.layer & 0x2) {
+        state->target_lcd_color = LCD_COLOR(168, saturation, 0xFF);
+        state->layer_text = "jlj-symbols";
+    }
+    else {
+        state->target_lcd_color = LCD_COLOR(84, saturation, brightness);
+        state->layer_text = "jlj-default";
+    }
+}