Added mattdicarlo Tada68 layout. (#2721)

keyboards/tada68/keymaps/mattdicarlo/config.h

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+#include "../../config.h"
+
+#define GRAVE_ESC_ALT_OVERRIDE

keyboards/tada68/keymaps/mattdicarlo/keymap.c

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+#include "tada68.h"
+
+// Layer names for readability.
+#define BASE_LAYER 0
+#define FUNC_LAYER 1
+
+#define _______ KC_TRNS
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+// Base layer, always active.
+[BASE_LAYER] = KEYMAP_ANSI(
+  KC_GESC, KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC, KC_HOME, \
+  KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSLS, KC_END,  \
+  KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,          KC_ENT,  KC_DEL,  \
+  KC_LSFT,          KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT, KC_UP,   _______, \
+  KC_LCTL, KC_LALT, KC_LGUI,                   KC_SPC,                             KC_RGUI, MO(_FL), _______, KC_LEFT, KC_DOWN, KC_RGHT),
+
+// Function overlay, toggled by the Fn key.
+[FUNC_LAYER] = KEYMAP_ANSI(
+  KC_GRV,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  _______, KC_VOLU, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_VOLD, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, KC_MUTE, \
+  _______,          _______, _______, _______, _______, _______, _______, _______, BL_DEC,  BL_INC,  BL_TOGG, _______, KC_PGUP, _______, \
+  _______, _______, KC_MRWD,                   KC_MPLY,                            KC_MFFD, _______, _______, KC_HOME, KC_PGDN, KC_END),
+};

keyboards/tada68/keymaps/mattdicarlo/readme.md

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+# Matt's TADA68 layout
+
+Mac OS modifier layout, plus various tweaks to the standard Tada68 layout.
+
+Uses Grave/Esc on the Esc key so that Cmd+Esc works to cycle through application windows as if the Grave/Tilde key was in the usual place, and sets the `GRAVE_ESC_ALT_OVERRIDE` flag so that Cmd-Opt-Esc still opens the Force Quit menu.
+
+Blanks on the switches above the Right Arrow and in between the Left Arrow and Fn keys, to give the arrow cluster a bit more separation and make it easier to find by feel.

keyboards/tada68/keymaps/mattdicarlo/rules.mk

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+# Build Options
+#   change to "no" to disable the options, or define them in the Makefile in
+#   the appropriate keymap folder that will get included automatically
+#
+BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = yes       # Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
+CONSOLE_ENABLE = no         # Console for debug(+400)
+COMMAND_ENABLE = yes        # Commands for debug and configuration
+NKRO_ENABLE = yes           # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+BACKLIGHT_ENABLE = yes      # Enable keyboard backlight functionality
+MIDI_ENABLE = no            # MIDI controls
+AUDIO_ENABLE = no           # Audio output on port C6
+UNICODE_ENABLE = no         # Unicode
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+RGBLIGHT_ENABLE = no        # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif