[Keyboard] Add new keyboard Symmetry60 (#7327)
* [Keyboard] Add new keyboard Symmetry60
* Add new keyboard Symmetry60
* Fix Typo
* Update keyboards/handwired/symmetry60/config.h
Co-Authored-By: James Young <18669334+noroadsleft@users.noreply.github.com>
* Update keyboards/handwired/symmetry60/readme.md
Co-Authored-By: James Young <18669334+noroadsleft@users.noreply.github.com>
* Update keyboards/handwired/symmetry60/readme.md
Co-Authored-By: James Young <18669334+noroadsleft@users.noreply.github.com>
* Update keyboards/handwired/symmetry60/readme.md
Co-Authored-By: James Young <18669334+noroadsleft@users.noreply.github.com>
* Update keyboards/handwired/symmetry60/rules.mk
Co-Authored-By: Drashna Jaelre <drashna@live.com>
* Update keyboards/handwired/symmetry60/symmetry60.h
Co-Authored-By: Drashna Jaelre <drashna@live.com>
* Update keyboards/handwired/symmetry60/symmetry60.h
Co-Authored-By: Drashna Jaelre <drashna@live.com>
* Update keyboards/handwired/symmetry60/symmetry60.h
Co-Authored-By: Drashna Jaelre <drashna@live.com>
* Update readme.md
* Update keymap.c
* Update keymap.c
* Update keymap.c
* Update rules.mk
* Update symmetry60.c
* Update keyboards/handwired/symmetry60/rules.mk
Co-Authored-By: James Young <18669334+noroadsleft@users.noreply.github.com>
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