ADNS-5050 / Ploopy Nano / Ploopy Mini Trackballs (#11994)

* added adns5050 sensor code, as well as implementations for the Ploopy Mini and the Ploopy Nano

* fixed spurious scrolling issue

* recommended fixes for pr linting and cleanup

keyboards/ploopyco/trackball_mini/rules.mk

@@ -0,0 +1,32 @@
+# MCU name
+MCU = atmega32u4
+
+# Processor frequency
+F_CPU = 16000000
+
+# Bootloader selection
+BOOTLOADER = atmel-dfu
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = lite     # Virtual DIP switch configuration
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = yes         # Console for debug
+COMMAND_ENABLE = no        # 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
+UNICODE_ENABLE = no         # Unicode
+BLUETOOTH_ENABLE = no       # Enable Bluetooth
+AUDIO_ENABLE = no           # Audio output
+POINTING_DEVICE_ENABLE = yes
+MOUSEKEY_ENABLE = no        # Mouse keys
+
+QUANTUM_LIB_SRC += analog.c
+SRC += adns5050.c opt_encoder.c
+
+DEFAULT_FOLDER = ploopyco/trackball_mini/rev1_001