[Keyboard] 45-ATS (#10104)

* add ats folder

* fix duplicate matrix key

* fix matrix issues

* fix missing comma in info.json

* clean up info.json

* rm game layer toggle in via keymap

* update via keymap rules.mk

* Update info.json

* clear up layout graphics

* Apply suggestions from code review

* Update 45_ats.c

* Update 45_ats.h

* Update config.h

* Update config.h

* Update keyboards/45_ats/keymaps/default/config.h

* Update keymap.c

* Update keyboards/45_ats/keymaps/default/keymap.c

* Update keymap.c

* Update keyboards/45_ats/keymaps/via/keymap.c

* Apply suggestions from code review

* Update keyboards/45_ats/config.h

keyboards/45_ats/rules.mk

@@ -0,0 +1,22 @@
+# MCU name
+MCU = atmega32u4
+
+# Bootloader selection
+BOOTLOADER = atmel-dfu
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = full     # Virtual DIP switch configuration
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = yes        # 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 = no            # USB Nkey Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+BLUETOOTH_ENABLE = no       # Enable Bluetooth
+AUDIO_ENABLE = no           # Audio output