ESP32s3: Migrate variants to new structure (#7343)

variants/esp32s3/heltec_wireless_paper/platformio.ini

@@ -0,0 +1,40 @@
+; Using the original screen class
+[env:heltec-wireless-paper]
+extends = esp32s3_base
+board = heltec_wifi_lora_32_V3
+board_build.partitions = default_8MB.csv
+build_flags = 
+  ${esp32s3_base.build_flags} 
+  -I variants/esp32s3/heltec_wireless_paper
+  -D HELTEC_WIRELESS_PAPER 
+  -D GXEPD2_DRIVER_0=GxEPD2_213_FC1
+  -D GXEPD2_DRIVER_1=GxEPD2_213_E0213A367
+  -D EINK_WIDTH=250
+  -D EINK_HEIGHT=122
+  -D USE_EINK
+  -D USE_EINK_DYNAMICDISPLAY            ; Enable Dynamic EInk
+  -D EINK_LIMIT_FASTREFRESH=10          ; How many consecutive fast-refreshes are permitted
+  -D EINK_BACKGROUND_USES_FAST          ; (Optional) Use FAST refresh for both BACKGROUND and RESPONSIVE, until a limit is reached.
+  -D EINK_HASQUIRK_GHOSTING             ; Display model is identified as "prone to ghosting"
+lib_deps =
+  ${esp32s3_base.lib_deps}
+  https://github.com/meshtastic/GxEPD2/archive/1655054ba298e0e29fc2044741940f927f9c2a43.zip
+  lewisxhe/PCF8563_Library@^1.0.1
+upload_speed = 115200
+
+[env:heltec-wireless-paper-inkhud]
+extends = esp32s3_base, inkhud
+board = heltec_wifi_lora_32_V3
+board_build.partitions = default_8MB.csv
+build_src_filter =
+  ${esp32_base.build_src_filter} 
+  ${inkhud.build_src_filter}
+build_flags =
+  ${esp32s3_base.build_flags}
+  ${inkhud.build_flags}
+  -I variants/esp32s3/heltec_wireless_paper
+  -D HELTEC_WIRELESS_PAPER
+lib_deps =
+  ${inkhud.lib_deps} ; InkHUD libs first, so we get GFXRoot instead of AdafruitGFX
+  ${esp32s3_base.lib_deps}
+upload_speed = 921600