[Keyboard] Squiggle (#9387)

* new keyboard for squiggle.

* added pic and other layout.

* updated readme.

* following drashna's suggestions.

* removed an empty line and right hand as master.

* following fauxpark's suggestions.

* following manna-harbour's suggestions.

* trying to satisfy PR Lint keyboards

* manna-harbour forgot to add it.

* following fauxparx's suggestions.

* following fauxpark's suggestions.

* following fauxpark's suggestions.'
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* following fauxpark's suggestions.

* following fauxpark''s suggestions.

* upated info.json to represent the actual layouts.

* following noroadsleft's suggestions.

keyboards/squiggle/rules.mk

@@ -0,0 +1,26 @@
+# MCU name
+MCU = atmega32u4
+
+BOOTLOADER = caterina
+
+BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration
+MOUSEKEY_ENABLE = no       # Mouse keys
+EXTRAKEY_ENABLE = no       # 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
+MIDI_ENABLE = no            # MIDI support
+BLUETOOTH_ENABLE = no       # Enable Bluetooth
+AUDIO_ENABLE = no           # Audio output
+FAUXCLICKY_ENABLE = no      # Use buzzer to emulate clicky switches
+
+SPLIT_KEYBOARD = yes
+
+DEFAULT_FOLDER = squiggle/rev1
+
+LAYOUTS = split_3x5_3