[Keyboard] Lattice60 (#8603)

* created initial files for the lattice60

* modifying the keymaps and config

* keymap edits and docs

* modifying docs and added personal keymap

* added pic and website to readme

* added layout image for default keymap

* updating layout pictures

* minor formatting edit

* file cleanup

* trying to prevent errors with usbconfig

* removed usbconfig.h

* cleaning up comments

* switched to use community hhkb layout

keyboards/lattice60/rules.mk

@@ -0,0 +1,40 @@
+# MCU name
+MCU = atmega328p
+
+# Bootloader selection
+#   Teensy       halfkay
+#   Pro Micro    caterina
+#   Atmel DFU    atmel-dfu
+#   LUFA DFU     lufa-dfu
+#   QMK DFU      qmk-dfu
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
+BOOTLOADER = USBasp
+
+# Processor frequency
+F_CPU = 12000000
+
+# disable the debugging code
+OPT_DEFS = -DDEBUG_LEVEL=0
+
+# Build Options
+#   change yes to no to disable
+#
+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 = no         # 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 = no            # USB Nkey Rollover
+BACKLIGHT_ENABLE = no       # 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
+
+LAYOUTS = 60_hhkb