Add default glow board

keyboards/ergodox_ez/keymaps/default_glow/keymap.c

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+// Placeholder.  See ../default/keymap.c for details

keyboards/ergodox_ez/keymaps/default_glow/readme.md

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+# ErgoDox EZ Default Configuration
+
+## Changelog
+
+* Dec 2016:
+  * Added LED keys
+  * Refreshed layout graphic, comes from http://configure.ergodox-ez.com now.
+* Sep 22, 2016:
+  * Created a new key in layer 1 (bottom-corner key) that resets the EEPROM.
+* Feb 2, 2016 (V1.1): 
+  * Made the right-hand quote key double as Cmd/Win on hold. So you get ' when you tap it, " when you tap it with Shift, and Cmd or Win when you hold it. You can then use it as a modifier, or just press and hold it for a moment (and then let go) to send a single Cmd or Win keystroke (handy for opening the Start menu on Windows).
+
+This is what we ship with out of the factory. :) The image says it all:
+
+![Default](https://i.imgur.com/Be53jH7.png)

keyboards/ergodox_ez/keymaps/default_glow/rules.mk

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+RGBLIGHT_ENABLE = no
+RGB_MATRIX_ENABLE = yes # enable later
+
+SRC += ../default/keymap.c