Add macroboard(5x6 OLKB blackpill) keyboard (#16219)

* Add macroboard keyboard

* Fix issues requested in pull request

* Removed halconf/mcuconf and moved to handwired directory

* Added description, enabled bootmagic, disabled console

* Apply suggestions from code review

Co-authored-by: Ryan <fauxpark@gmail.com>

Co-authored-by: Ryan <fauxpark@gmail.com>

keyboards/handwired/macroboard/keymaps/default/keymap.c

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+/* Copyright 2021 Michał Szczepaniak
+ *
+ * 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
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [0] = LAYOUT_ortho_5x6(
+        KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,
+        KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,
+        KC_ESC,  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,
+        KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,
+        KC_LCTL, KC_LGUI, RGB_TOG, KC_LALT, RESET,   KC_SPC
+    )
+};
+

keyboards/handwired/macroboard/keymaps/default/readme.md

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+# The default keymap for macroboard