OLED Cyrillic Support for v1.3 (#1640)

* Extended ASCII codes and cyrillic support

(cherry picked from commit e977840805)

* Fixed `ё`, `Ё` letters

(cherry picked from commit 2f4a2ccb2f)

* Fixed `customFontTableLookup` execution flow

(cherry picked from commit 377f909f36)

* [OLED] Specifying the language by defining it in `platformio.ini`

(cherry picked from commit ddd8132b24)

* [OLED] localization guide

(cherry picked from commit a3267c886f)

* [OLED] Cyrillic support

Localization guide has been moved to https://github.com/meshtastic/Meshtastic/tree/master/docs/developers/Firmware

https://meshtastic.org/docs/developers/Firmware/oled-l10n-guide

Co-authored-by: Thomas Göttgens <tgoettgens@gmail.com>
Co-authored-by: Ben Meadors <benmmeadors@gmail.com>

variants/diy/platformio.ini

@@ -6,6 +6,7 @@ build_flags =
   ${esp32_base.build_flags}
   -D DIY_V1
   -D EBYTE_E22
+  -D OLED_RU
   -I variants/diy/v1
 
 ; Meshtastic DIY v1.1 new schematic based on ESP32-WROOM-32 & SX1262/SX1268 modules
@@ -16,4 +17,17 @@ build_flags =
   ${esp32_base.build_flags}
   -D DIY_V1
   -D EBYTE_E22
-  -I variants/diy/v1_1
+  -D OLED_RU
+  -I variants/diy/v1_1
+
+; Port to Disaster Radio's ESP32-v3 Dev Board
+[env:meshtastic-dr-dev]
+extends = esp32_base
+board = esp32doit-devkit-v1
+board_upload.maximum_size = 4194304
+board_upload.maximum_ram_size = 532480
+build_flags =
+  ${esp32_base.build_flags}
+  -D DR_DEV
+  -D EBYTE_E22
+  -I variants/diy/dr-dev