New Keyboard: Sentraq Number Pad RGB DIY Kit (#5047)

* Added QMK Config for Sentraq Number Pad keyboard.

* Sentraq Number Pad documentation cleanup.

* mend

* Added json for configurator.

* Small documentation tweaks.

* Updated the layouts to use the default layouts that match.

* Uncommended user level functions in keymap, left custom keycode/macro code commented but documented why.

* Switched to #pragma once from #ifndef structure in header file.

* Moved Sentraq number pad to sentraq creator directory.

* Renamed sentraq_number_pad to number_pad now that it's nested in the sentraq directory.

* Updated references inside the files for the keyboard rename and nesting.

keyboards/sentraq/number_pad/number_pad.h

@@ -0,0 +1,56 @@
+/* Copyright 2019 QMK Community
+ *
+ * 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
+
+#include "quantum.h"
+
+/* This a shortcut to help you visually see your layout.
+ *
+ * The first section contains all of the arguments representing the physical
+ * layout of the board and position of the keys.
+ *
+ * The second converts the arguments into a two-dimensional array which
+ * represents the switch matrix.
+ */
+#define LAYOUT_numpad_5x4( \
+    K00, K01, K02, K03, \
+    K10, K11, K12, \
+    K20, K21, K22, K23, \
+    K30, K31, K32, \
+    K40,      K42, K43 \
+) \
+{ \
+    { K00, K01, K02, K03 }, \
+    { K10, K11, K12, KC_NO }, \
+    { K20, K21, K22, K23 }, \
+    { K30, K31, K32, KC_NO }, \
+    { K40, KC_NO, K42, K43 } \
+}
+
+#define LAYOUT_ortho_5x4( \
+    K00, K01, K02, K03, \
+    K10, K11, K12, K13, \
+    K20, K21, K22, K23, \
+    K30, K31, K32, K33, \
+    K40, K41, K42, K43  \
+) \
+{ \
+    { K00, K01, K02, K03 }, \
+    { K10, K11, K12, K13 }, \
+    { K20, K21, K22, K23 }, \
+    { K30, K31, K32, K33 }, \
+    { K40, K41, K42, K43 }  \
+}