[Keyboard] Add akegata denki device one (#9690)

* add device one

* fix layouts

* add other layouts

* column fixes, device id changes

* layouts cleanup, add readme

* add info.json, fix readme

* add template readme

* add smaller image

* fix image links, address requested changes

* Apply suggestions from code review

* Update keyboards/device_one/keymaps/ansi_split_backspace/keymap.c

* add akegata vendor folder

* Apply suggestions from code review

keyboards/akegata_denki/device_one/rules.mk

@@ -0,0 +1,21 @@
+# MCU name
+MCU = STM32F042
+
+BOARD = DEVICE_ONE
+
+# Build Options
+#   comment out to disable the options.
+#
+BACKLIGHT_ENABLE = no
+BOOTMAGIC_ENABLE = no				# Virtual DIP switch configuration
+MOUSEKEY_ENABLE = no				# Mouse keys
+EXTRAKEY_ENABLE = no				# Audio control and System control
+CONSOLE_ENABLE = no					# Console for debug
+COMMAND_ENABLE = no    			# Commands for debug and configuration
+NKRO_ENABLE = yes					  # USB Nkey Rollover
+NO_USB_STARTUP_CHECK = no   # Disable initialization only when usb is plugged in
+
+LAYOUTS = 60_ansi 60_iso
+
+# Enter lower-power sleep mode when on the ChibiOS idle thread
+OPT_DEFS += -DCORTEX_ENABLE_WFI_IDLE=TRUE