lay groundwork for a possible future architecture (#1571)

* lay groundwork for a possible future architecture

* switch from feature opt-out to feature opt-in

* lay groundwork for a possible future architecture

* switch from feature opt-out to feature opt-in

* fix USE_RTC in variant.h for rak4631_epaper and t-echo

* ensure Screen.h is not included without configuration.h

Co-authored-by: Peter Lawrence <12226419+majbthrd@users.noreply.github.com>
Co-authored-by: Ben Meadors <benmmeadors@gmail.com>

platformio.ini

@@ -91,7 +91,7 @@ lib_deps =
 extends = arduino_base
 platform = espressif32@3.5.0
 build_src_filter = 
-  ${arduino_base.build_src_filter} -<nrf52/>
+  ${arduino_base.build_src_filter} -<nrf52/> -<stm32wl>
 upload_speed = 115200
 debug_init_break = tbreak setup
 
@@ -143,7 +143,7 @@ build_flags =
   ${arduino_base.build_flags} -Wno-unused-variable 
   -Isrc/nrf52
 build_src_filter = 
-  ${arduino_base.build_src_filter} -<esp32/> -<nimble/> -<mesh/wifi/> -<mesh/http/> -<modules/esp32> -<mqtt/>
+  ${arduino_base.build_src_filter} -<esp32/> -<stm32wl> -<nimble/> -<mesh/wifi/> -<mesh/http/> -<modules/esp32> -<mqtt/>
 lib_ignore =
   BluetoothOTA