[Keyboard] Adding support for Gergo (#4792)

[Keyboard] Adding support for Gergo (#4792)

* Commited into clean repo

* Gergo initial release

* Cleaning up

* Cleaning up

* Update readme.md

* Updated image, fixed MD formatting, added clairity

* Moved keymap to keyboard subdir, modified rules.mk

* Cleaned header guards

* Cleaned header guards. Read the rest of the PR comments

* Update keyboards/gergo/keymaps/default/keymap.c

Co-Authored-By: germ <jeremythegeek@gmail.com>
* Update keyboards/gergo/readme.md

Co-Authored-By: germ <jeremythegeek@gmail.com>
* Moved makefiles to keymap mod-area-thingy-with-overrides

* Update rules.mk

Slow the roll on the defaults while I wait for merge

* Update rules.mk

* Cleaning cleaning cleaning

* More housekeeping. Keeping optdefs

* moved keyboard specfic conf to config.h. Can we merge yet?

* added info.json