[Keyboard] Add 5 boards by the OverNumpad Controller (#14382)

* Add initial implementation of 5 keyboards supported by the OverNumpad Controller.

* Apply suggestions from code review

Co-authored-by: Drashna Jaelre <drashna@live.com>

* Apply changes similar to other code review suggestions.

* Apply suggestions from code review

Co-authored-by: Drashna Jaelre <drashna@live.com>

* Apply changes similar to other code review suggestions.

* overnumpad controller info.jsons: update maintainer and url.

* classic_ultracl_pre_2013: added support for the default 'fullsize_ansi' layout

* classic_ultracl_pre_2013: moved the order of the iso enter key in the layout macro to be considered to be on the bottom row, like in the default fullsize_iso layout. Rename the iso layout to fullsize_iso, and enable it in rules.mk

* Removed QMKBEST and QMKURL

* Apply suggestions from code review

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

* Deleting empty files

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

keyboards/unicomp/spacesaver_m_pre_2013/overnumpad_1xb/config.h

@@ -0,0 +1,73 @@
+/* Copyright 2020 Purdea Andrei
+ *
+ * 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 "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID 0x16C0
+#define PRODUCT_ID 0x27DB
+#define DEVICE_VER 0x0001
+#define MANUFACTURER Unicomp/Purdea Andrei
+#define PRODUCT Unicomp Spacesaver M
+#define DESCRIPTION QMK firmware for the Unicomp Spacesaver M keyboard with a replacement Overnumpad controller
+#define SERIAL_NUMBER "purdea.ro:overnumpad_controller"
+
+/* key matrix size */
+#define MATRIX_ROWS 8
+#define MATRIX_COLS 16
+
+/*
+ * Keyboard Matrix Assignments
+ *
+ * Change this to how you wired your keyboard
+ * COLS: AVR pins used for columns, left to right
+ * ROWS: AVR pins used for rows, top to bottom
+ * DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
+ *                  ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
+ *
+ */
+
+// All pins in order from left-to-right, as seen on the keyboard:
+// C3, C2, C1, C0, A3, A4, A5, A6, A7, C4, C5, B0, B1, B10, B12, B13, B14, B15, C6, C7, C8, C9, A8, A9, A10, 
+// On this chip A10, B10 have stronger pull-ups, so it's better to avoid them if possible.
+
+// On this keyboard the right-most pin is not used, so that is A10.
+// On this keyboard the right-most 8 pins (excluding the unused pin) are routed on the bottom.
+
+#define MATRIX_COL_PINS { C3, C2, C1, C0, A3, A4, A5, A6, A7, C4, C5, B0, B1, B10, B12, B13 }
+#define MATRIX_ROW_PINS { B14, B15, C6, C7, C8, C9, A8, A9 }
+//#define UNUSED_PINS
+
+/* COL2ROW, ROW2COL*/
+#define DIODE_DIRECTION ROW2COL
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCE 5
+
+/* define if matrix has ghost (lacks anti-ghosting diodes) */
+#define MATRIX_HAS_GHOST
+
+#define STM32_HSECLK 16000000
+
+#define SOLENOID_PIN B5
+#define SOLENOID_DEFAULT_DWELL 4
+#define SOLENOID_MIN_DWELL 4
+#define NO_HAPTIC_MOD
+
+#define LED_CAPS_LOCK_PIN C12
+#define LED_ON_STATE 1
+// C11 and C10 are also leds, but C11 is not used in this keyboard, and C10 is configured in ${keyboard}.c