* BIG refactor: 'board' and 'radio' objects now defined in 'target.h/.cpp'

* mesh::RTCClock class moved to MeshCore.h

variants/station_g2/platformio.ini

@@ -3,6 +3,7 @@ extends = esp32_base
 board = station-g2
 build_flags =
   ${esp32_base.build_flags}
+  -I variants/station_g2
   -D STATION_G2
   -D RADIO_CLASS=CustomSX1262
   -D WRAPPER_CLASS=CustomSX1262Wrapper
@@ -16,8 +17,8 @@ build_flags =
   -D SX126X_CURRENT_LIMIT=130.0f  ; for best TX power!
 ;  -D SX126X_RX_BOOSTED_GAIN=1 - DO NOT ENABLE THIS!
 ;  https://wiki.uniteng.com/en/meshtastic/station-g2#impact-of-lora-node-dense-areashigh-noise-environments-on-rf-performance
-
 build_src_filter = ${esp32_base.build_src_filter}
+  +<../variants/station_g2>
 lib_deps =
   ${esp32_base.lib_deps}