[Keyboard] Add new keyboard: Omnikeyish - A replacement PCB for the Northgate Omnikey family (#6167)

* Add omnikeyish keyboard support.

* remove out of date comment

* PCB Rev 1.1 moved Row5's pin to E6, because the teensy++ hangs an onboard LED off D6.

* Move string.h include to .c file

* Add pcb kicad link.

* Add info.json

* Move macro programming to numlock's keyposition, the most useless key on the post model M layout. Force numlock enabled on host at init time, so you're not stuck without a numpad (hopefully)

* Make the macro blink function toggle LEDs from their previous state.

* Use incorrect but code style compliant opening curly bracing style.

* Make PCB rev 1.1 the default Omnikeyish config, as the author has the only rev 1.0 boards that'll ever be.

* Fix silly spelling error in 3 defines

* First set of review changes.

* Layout macro and keymap defined using it.

* Layout macros for the northgate factory plates.

* minor rearrangements

* ALL the layouts.

* Forgot ultra-t in info.json

1 files changed, 63 insertions, 0 deletions

diff --git a/keyboards/omnikeyish/config.h b/keyboards/omnikeyish/config.h
new file mode 100644
index 0000000000..d510c64c9b
--- /dev/null
+++ b/keyboards/omnikeyish/config.h
@@ -0,0 +1,63 @@
+#pragma once
+
+#include "config_common.h"
+
+#define KEYBOARD_PCB_REV 11
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xFEED
+#define PRODUCT_ID      0x0666
+#define DEVICE_VER      0x1337
+#define MANUFACTURER    Henrik O. Sørensen
+#define PRODUCT         Omnikey(-ish) Keyboard
+#define DESCRIPTION     Replacement PCB for Omnikey keyboards
+
+/* key matrix size */
+#define MATRIX_ROWS 6
+#define MATRIX_COLS 23
+
+/* key matrix pins */
+#if KEYBOARD_PCB_REV == 10
+#define MATRIX_ROW_PINS { D2, D3, D4, D5, D6, D7 }
+#else
+#define MATRIX_ROW_PINS { D2, D3, D4, D5, E6, D7 }
+#endif 
+#define MATRIX_COL_PINS { F0, F1, F2, F3, F4, F5, F6, F7, C7, C6, C5, C4, C3, C2, C1, C0, B0, B1, B2, B3, B4, B5, B6 }
+
+#define NUMLOCKLEDPIN E0
+#define CAPSLOCKLEDPIN E1
+#define SCROLLLOCKLEDPIN B7
+
+/* COL2ROW or ROW2COL */
+#define DIODE_DIRECTION ROW2COL
+
+/* number of backlight levels */
+#ifdef BACKLIGHT_PIN
+#define BACKLIGHT_LEVELS 0
+#endif
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCE 5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* force n-key rollover*/
+#define FORCE_NKRO
+
+#ifdef RGB_DI_PIN
+#define RGBLIGHT_ANIMATIONS
+#define RGBLED_NUM 0
+#define RGBLIGHT_HUE_STEP 8
+#define RGBLIGHT_SAT_STEP 8
+#define RGBLIGHT_VAL_STEP 8
+#endif
+
+#define DYNAMIC_MACRO_COUNT 12
+#define DYNAMIC_MACRO_SIZE 48
+#define DYNAMIC_MACRO_EEPROM_STORAGE
+#define DYNAMIC_MACRO_EEPROM_MAGIC_ADDR (uint16_t*)32
+#define DYNAMIC_MACRO_EEPROM_BLOCK0_ADDR (uint8_t*)34