[Keyboard] Southpaw66 by rpiguy9907 (#10782)

* added Keyboard Southpaw66

* Housekeeping, shorten urls

* Housekeeping

* Row matrix pins were flipped, fixed

* housekeeping, extraneous punctuation

* bug-fixing

* bug-fixing

* Layout macro fixed

* Layout macro fixed again

* Update and rename Southpaw66,c to southpaw66.c

* Rename Southpaw66.h to southpaw66.h

* Update config.h

* Update info.json

* Change Southpaw66 to southpaw66

made change to case in all instances in code except where critical, such as in url's.

* Rename parent folder from Southpaw66 to southpaw66

* Rename parent folder from Southpaw66 to southpaw66

* Update info.json

* Update keyboards/rpiguy9907/Southpaw66/readme.md

updated image url to point to lower resolution image.

* Update config.h

re-capitalized Southpaw66 in product name.

* Rename Southpaw66 parent folder to southpaw66

* Rename parent folder from Southpaw66 to southpaw66

* rename parent folder from Southpaw66 to southpaw66

* rename parent folder from Southpaw66 to southpaw66

* Rename parent folder from Southpaw66 to southpaw66

* rename parent folder from Southpaw66 to southpaw66

* rename parent folder from Southpaw66 to southpaw66

* Update keyboards/rpiguy9907/southpaw66/readme.md

* Update keyboards/rpiguy9907/southpaw66/config.h

keyboards/rpiguy9907/southpaw66/rules.mk

@@ -0,0 +1,23 @@
+# MCU name
+MCU = atmega32u4
+
+# Bootloader selection
+BOOTLOADER = caterina
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = lite     # Virtual DIP switch configuration
+MOUSEKEY_ENABLE = no        # 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 = yes           # USB Nkey Rollover
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+BLUETOOTH_ENABLE = no       # Enable Bluetooth
+AUDIO_ENABLE = no           # Audio output
+LTO_ENABLE = yes