[Keyboard] Added a simple 2x5 Keypad with 4 layers (#6699)

* Added new 2x5 Keypad with 3 LEDs to indicate the selected layer.  By Jonathan Cameron.

* Minor refactor from suggestions from qmk team

* Added

* Moved to 'handwired' directory

* Update readme.md

* Update readme.md

* Update readme.md

* Update keyboards/handwired/2x5keypad/readme.md

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Switch to image offsite

* Moved image offsite

* Update keyboards/handwired/2x5keypad/keymaps/default/keymap.h

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Update keyboards/handwired/2x5keypad/2x5keypad.h

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Moved functions into .c file per suggestions

* Cosmetic

* Fixed function called, per suggestions.

* Update keyboards/handwired/2x5keypad/2x5keypad.h

Ok

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Moved LED functions to the top level since they can be used it various flavors

* Declare those moved LED functions!

* Update keyboards/handwired/2x5keypad/config.h

Co-Authored-By: Drashna Jaelre <drashna@live.com>

keyboards/handwired/2x5keypad/rules.mk

@@ -0,0 +1,13 @@
+MCU = atmega32u4
+BOOTLOADER = caterina
+
+BOOTMAGIC_ENABLE = yes	# 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
+SLEEP_LED_ENABLE = no   # Breathing sleep LED during USB suspend
+NKRO_ENABLE = yes	# USB Nkey Rollover -
+BACKLIGHT_ENABLE = no   # Enable keyboard backlight functionality
+AUDIO_ENABLE = no
+RGBLIGHT_ENABLE = no