[Core] Refactor OLED to allow easy addition of other types (#13454)

* add docs

* core changes

* update keyboards to new OLED

* updated users to new OLED

* update layouts to new OLED

* fixup docs

* drashna's suggestion

* fix up docs

* new keyboards with oled

* core split changes

* remaining keyboard files

* Fix The Helix keyboards oled options

* reflect develop

Co-authored-by: Drashna Jaelre <[email protected]>
Co-authored-by: mtei <[email protected]>

keyboards/ckeys/washington/keymaps/default/keymap.c

@@ -58,7 +58,7 @@ bool encoder_update_user(uint8_t index, bool clockwise) {
     return true;
 }
 
-#ifdef OLED_DRIVER_ENABLE
+#ifdef OLED_ENABLE
 void oled_task_user(void) {
   // Host Keyboard Layer Status
   oled_write_P(PSTR("Layer: "), false);

keyboards/ckeys/washington/rules.mk

@@ -28,4 +28,5 @@ RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
 BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
 AUDIO_ENABLE = no           # Audio output on port C6
 ENCODER_ENABLE = yes        # Enable support for encoders
-OLED_DRIVER_ENABLE = yes    # Enable support for OLED displays
+OLED_ENABLE = yes
+OLED_DRIVER = SSD1306    # Enable support for OLED displays