add support for BMP280 temperature+pressure sensor

variants/lilygo_tlora_v2_1/platformio.ini

@@ -17,6 +17,8 @@ build_flags =
   -D P_LORA_MISO=19     ; SPI MISO
   -D P_LORA_MOSI=27     ; SPI MOSI
   -D P_LORA_TX_LED=2    ; LED pin for TX indication
+  -D PIN_BOARD_SDA=21
+  -D PIN_BOARD_SCL=22
   -D PIN_VBAT_READ=35   ; Battery voltage reading (analog pin)
   -D PIN_USER_BTN=0
   -D ARDUINO_LOOP_STACK_SIZE=16384
@@ -25,11 +27,21 @@ build_flags =
   -D WRAPPER_CLASS=CustomSX1276Wrapper
   -D SX127X_CURRENT_LIMIT=120
   -D LORA_TX_POWER=20
+  -D ENV_INCLUDE_AHTX0=1
+  -D ENV_INCLUDE_BME280=1
+  -D ENV_INCLUDE_BMP280=1
+  -D ENV_INCLUDE_INA3221=1
+  -D ENV_INCLUDE_INA219=1
 build_src_filter = ${esp32_base.build_src_filter}
   +<../variants/lilygo_tlora_v2_1>
+  +<helpers/sensors>
 lib_deps =
   ${esp32_base.lib_deps}
   adafruit/Adafruit SSD1306 @ ^2.5.13
+  adafruit/Adafruit INA3221 Library @ ^1.0.1
+  adafruit/Adafruit INA219 @ ^1.2.3
+  adafruit/Adafruit AHTX0 @ ^2.0.5
+  adafruit/Adafruit BME280 Library @ ^2.3.0
 
 ; === LILYGO T-LoRa V2.1-1.6 with SX1276 environments ===
 [env:LilyGo_TLora_V2_1_1_6_Repeater]