Add sgoodwin keymap for the KC60 (#410)

Add sgoodwin keymap for the KC60 (#410)

* Don't save the ctags file in the repo.

* Initial support for the KC60 board. Only 5x5 working so far.

* Rename because this isn't the same KC60 as others.

* Add in some generic layout.
Pins seem to be in the right order except the 6th column spews
gibberish.

* Don't need this for now.

* Move this to some other folder.

* Trying again to start over.

* Don't need to start over because I figured out why the 'broken' stuff wasn't working.

* Attempt to enable backlighting. It's on on pin B7 like other boards.

* Fix last port changes and fix LED control in keymap.

* Trying some other LED code.

* Bootloader needs to be bigger. Disabling backlight for now.

* Simplify LED code while I try to figure it out.

* Turn back on backlighting.

* Backlighting works now. Just need to get levels or breathing working.

* Trying to allow for turning off the LEDs before I get to brightness levels.

* The missing link: need to run the init_ports function for LEDs to work properly.

* Removing breathing stuff since it bricks the board.

* Clean up default layer.

* Cleanup keymap, KC60 doesn't support a 5th right bottom-row button.

* Add in the keymap I want for now.

* Back to escape by default.

* Move my personal keymap to the new place for keymaps.

* Add the version number for clarity.