[Keyboard] Leaf60 hotswap and universal pcb (#5882)

* initial commit

* copy paste with some fixes the code from fox lab leaf60 repo

* add 60_ansi and 60_hhkb and community layout support

* add QMK Configurator support

* turn bootmagic to lite and turn on rgb and backlights

* disable some features so firmware isn't too big

* initial commit for hotswap leaf60

* add hotswap support

* edits for consistency

* add a generic leaf60 readme

* turn off console and command to save firmware space

* not enabling sleep led enable

* not enabling sleep led enable

* had one extra key in 60_hhkb

* get rid of limit val define

* Update keyboards/foxlab/leaf60/hotswap/readme.md

Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>

* Update keyboards/foxlab/leaf60/hotswap/rules.mk

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Update keyboards/foxlab/leaf60/universal/rules.mk

Co-Authored-By: fauxpark <fauxpark@gmail.com>

keyboards/foxlab/leaf60/hotswap/keymaps/default/readme.md

@@ -0,0 +1 @@
+# The default keymap for Fox Lab Hotswap Leaf60