[Keymap] BM16a stock layout (#8547)

* Stock layout

* Added the default readme

* Update keyboards/bm16a/keymaps/stock/keymap.c

Removed trailing backslashes from layouts

* Removed redundant files, renamed stock keymap and changed readme

keyboards/bm16a/keymaps/factory/keymap.c

@@ -0,0 +1,37 @@
+/* Copyright 2019
+ *
+ * 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/>.
+ */
+#include QMK_KEYBOARD_H
+
+enum layers {
+  _BASE = 0,
+  _FN1,
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+  [_BASE] = LAYOUT_ortho_4x4(
+    KC_P7,    KC_P8,    KC_P9,    KC_PMNS,
+    KC_P4,    KC_P5,    KC_P6,    KC_PPLS,
+    KC_P1,    KC_P2,    KC_P3,    KC_PENT,
+    KC_P0,    KC_PDOT,  KC_SPC,   MO(_FN1)
+  ),
+  [_FN1] = LAYOUT_ortho_4x4(
+    RESET,    KC_PAST,  KC_PSLS,  _______,
+    BL_TOGG,  BL_DEC,   BL_INC,   BL_STEP,
+    RGB_TOG,  RGB_MOD,  RGB_HUI,  RGB_HUD,
+    RGB_SAI,  RGB_SAD,  _______,  _______
+  )
+};

keyboards/bm16a/keymaps/factory/readme.md

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+# A factory-like keymap for the bm16a
+
+This keymap recreates the stock layout this keypad ships with. Use it if you want to return to stock, but with QMK.
+