[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 <drashna@live.com>
Co-authored-by: mtei <2170248+mtei@users.noreply.github.com>

keyboards/le_chiffre/keymaps/default/keymap.c

@@ -90,7 +90,7 @@ combo_t key_combos[COMBO_COUNT] = {
 };
 #endif
 
-#ifdef OLED_DRIVER_ENABLE  //Special thanks to Sickbabies for this great OLED widget!
+#ifdef OLED_ENABLE  //Special thanks to Sickbabies for this great OLED widget!
 oled_rotation_t oled_init_user(oled_rotation_t rotation) {
     return OLED_ROTATION_90;  // rotates for proper orientation
 }

keyboards/le_chiffre/keymaps/via/keymap.c

@@ -49,7 +49,7 @@ bool encoder_update_user(uint8_t index, bool clockwise) {
     return true;
 }
 
-#ifdef OLED_DRIVER_ENABLE  //Special thanks to Sickbabies for this great OLED widget!
+#ifdef OLED_ENABLE  //Special thanks to Sickbabies for this great OLED widget!
 oled_rotation_t oled_init_user(oled_rotation_t rotation) {
     return OLED_ROTATION_90;  // rotates for proper orientation
 }

keyboards/le_chiffre/rules.mk

@@ -19,7 +19,7 @@ NKRO_ENABLE = yes           # USB Nkey Rollover
 RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
 TAP_DANCE_ENABLE = no
 ENCODER_ENABLE = yes
-OLED_DRIVER_ENABLE = no
+OLED_ENABLE = no
 RGB_MATRIX_ENABLE = yes
 RGB_MATRIX_DRIVER = WS2812
 LTO_ENABLE = yes