[Keyboard] Adding "Bigmac" 5x17 handwired by Taylore101 (#11204)

* Adding bigmac handwired by taylore101

* Adding bigmac handwired by taylore101

* Updated Big Mac pin layout

* Updated files from kbfirmware to newer qmk. Thanks drashna

* Updated config file to have product and manufacturer info. Thanks again drashna

* Update readme.md

added missing picture of board layout

* Update keyboards/handwired/bigmac/readme.md

Co-authored-by: Drashna Jaelre <drashna@live.com>

Co-authored-by: Taylor Graves <taylorgraves@BOS0005.local>
Co-authored-by: Taylor Graves <taylorgraves@BOS0005.lan>
Co-authored-by: Drashna Jaelre <drashna@live.com>

keyboards/handwired/bigmac/rules.mk

@@ -0,0 +1,25 @@
+# MCU name
+MCU = atmega32u4
+
+# Bootloader selection
+BOOTLOADER = atmel-dfu
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = lite     # 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
+
+# generated by KBFirmware JSON to QMK Parser
+# https://noroadsleft.github.io/kbf_qmk_converter/