[Keyboard] Handwired Maltron DQz11N1G contoured keyboard (#17237)

* Basic support for Maltron DQz11N1G controller replacement.

* Update keyboards/handwired/dqz11n1g/rules.mk

* Rehost images to cubeupload.com.

(They were previously hosted via github wiki)

* Apply suggestions from noroadsleft code review

* Update keyboards/handwired/dqz11n1g/dqz11n1g.h

keyboards/handwired/dqz11n1g/rules.mk

@@ -0,0 +1,24 @@
+# MCU name
+MCU = atmega32u4
+
+# Bootloader selection
+BOOTLOADER = caterina
+
+# Keyboard matrix uses shift-registers read via SPI
+CUSTOM_MATRIX = lite
+SRC += matrix.c 
+QUANTUM_LIB_SRC += spi_master.c
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = no       # Enable Bootmagic Lite
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
+COMMAND_ENABLE = yes        # Commands for debug and configuration
+NKRO_ENABLE = no            # Enable N-Key Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+AUDIO_ENABLE = yes          # Audio output
+