Keyboard: Add Prime_EXL prototype to 'handwired' (#3932)

* initial commit

* Update readme.md

* Update keymap.c

added comment for description of function to control LED as layer indicator

* corrected formatting as requested.

* format for configurator

* corrected info.json to propertly reflect layout in Configurator

* updated layouts to reflect physical keyboard

1 files changed, 19 insertions, 0 deletions

diff --git a/keyboards/handwired/prime_exl/keymaps/default/config.h b/keyboards/handwired/prime_exl/keymaps/default/config.h
new file mode 100644
index 0000000000..83bd38a81d
--- /dev/null
+++ b/keyboards/handwired/prime_exl/keymaps/default/config.h
@@ -0,0 +1,19 @@
+/* Copyright 2018 Holten Campbell
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+// place overrides here