Tada68 Fixes and Minor Refactoring (#7820)

* fix ANSI layout macro reference

* update ISO layout macro and enable 65_iso community layout support

- rename to LAYOUT_65_iso (with LAYOUT_iso alias for backwards compatibility)
- rename position k2c to k1d (electrical position)

* rules.mk templating

* tada68.h: use #pragma once include guard

* config.h: use #pragma once include guard

* make product id unique

* update info.json

* update readme

* cleanup default keymap

- keycode alignment
- layout macro reference
- four-space indent

* remove matrix_*_user functions from tada68.h

keyboards/tada68/rules.mk

@@ -12,19 +12,24 @@ MCU = atmega32u4
 BOOTLOADER = lufa-ms
 
 # Build Options
-#   comment out to disable the options.
+#   change yes to no to disable
 #
-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		# USB Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
-RGBLIGHT_ENABLE = no   # Enable keyboard underlight functionality (+4870)
-BACKLIGHT_ENABLE = yes  # Enable keyboard backlight functionality (+1150)
-MIDI_ENABLE = no 		# MIDI controls
-AUDIO_ENABLE = no
-UNICODE_ENABLE = no 		# Unicode
-BLUETOOTH_ENABLE = no # Enable Bluetooth with the Adafruit EZ-Key HID
+BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
+COMMAND_ENABLE = yes        # Commands for debug and configuration
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = yes           # USB Nkey Rollover
+BACKLIGHT_ENABLE = yes      # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+MIDI_ENABLE = no            # MIDI support
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+AUDIO_ENABLE = no           # Audio output on port C6
+FAUXCLICKY_ENABLE = no      # Use buzzer to emulate clicky switches
+HD44780_ENABLE = no         # Enable support for HD44780 based LCDs
+UNICODE_ENABLE = no         # Unicode
 
-LAYOUTS = 65_ansi
+LAYOUTS = 65_ansi 65_iso