Add Function level EECONFIG code for EEPROM (#3084)

* Add Function level EEPROM configuration

Add kb and user functions for EEPROM, and example of how to use it.

* Bug fixes and demo

* Additional cleanup

* Add EEPROM reset macro to example

* Forgot init function in list

* Move eeconfig_init_quantum function to quantum.c and actually set default layer

* See if removing weak quantum function fixes issue

* Fix travis compile error

* Remove ifdef blocks from EECONFIG so settings are always set

* Fix for ARM EEPROM updates

* Fix merge issues

* Fix potential STM32 EEPROM issues

keyboards/ergodox_ez/keymaps/rgb_layer/config.h

@@ -0,0 +1,24 @@
+#ifndef KEYMAP_CONFIG_H
+#define KEYMAP_CONFIG_H
+
+
+    #define RGBLIGHT_SLEEP
+
+
+#ifndef QMK_KEYS_PER_SCAN
+#define QMK_KEYS_PER_SCAN 4
+#endif // !QMK_KEYS_PER_SCAN
+
+#define IGNORE_MOD_TAP_INTERRUPT
+#undef PERMISSIVE_HOLD
+#undef PREVENT_STUCK_MODIFIERS
+
+
+#define FORCE_NKRO
+
+#ifndef TAPPING_TOGGLE
+#define TAPPING_TOGGLE  1
+#endif
+
+#endif // !USERSPACE_CONFIG_H
+