Add Le Chiffre keyboard (#8995)

* Initial

* update json, added basic oled config, updated matrix to correct rotary location

* disable oled by default

* Tuned oled for release

* Completed OLED function implementation
Correct spelling error in readme

* Fixed image in readme

* Should not be in this branch

* Incorporating recommended changes by zvecr

* Update keyboards/le_chiffre/info.json

Co-authored-by: James Young <18669334+noroadsleft@users.noreply.github.com>

* Update keyboards/le_chiffre/readme.md

Co-authored-by: James Young <18669334+noroadsleft@users.noreply.github.com>

Co-authored-by: James Young <18669334+noroadsleft@users.noreply.github.com>

keyboards/le_chiffre/rules.mk

@@ -0,0 +1,22 @@
+# MCU name
+MCU = atmega32u4
+
+# Bootloader selection
+#   Teensy       halfkay
+#   Pro Micro    caterina
+#   Atmel DFU    atmel-dfu
+#   LUFA DFU     lufa-dfu
+#   QMK DFU      qmk-dfu
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
+BOOTLOADER = atmel-dfu
+
+BOOTMAGIC_ENABLE = lite       # Virtual DIP switch configuration
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+NKRO_ENABLE = yes            # USB Nkey Rollover
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+TAP_DANCE_ENABLE = no
+ENCODER_ENABLE = yes
+OLED_DRIVER_ENABLE = no