✨ Fan tachometer support (#23086)

Co-authored-by: Scott Lahteine <github@thinkyhead.com>

platformio.ini

@@ -111,6 +111,7 @@ default_src_filter = +<src/*> -<src/config> -<src/HAL> +<src/HAL/shared>
   -<src/feature/e_parser.cpp>
   -<src/feature/encoder_i2c.cpp>
   -<src/feature/ethernet.cpp> -<src/gcode/feature/network/M552-M554.cpp>
+  -<src/feature/fancheck.cpp>
   -<src/feature/fanmux.cpp>
   -<src/feature/filwidth.cpp> -<src/gcode/feature/filwidth>
   -<src/feature/fwretract.cpp> -<src/gcode/feature/fwretract>
@@ -228,6 +229,7 @@ default_src_filter = +<src/*> -<src/config> -<src/HAL> +<src/HAL/shared>
   -<src/gcode/sd/M32.cpp>
   -<src/gcode/sd/M808.cpp>
   -<src/gcode/temp/M104_M109.cpp>
+  -<src/gcode/temp/M123.cpp>
   -<src/gcode/temp/M155.cpp>
   -<src/gcode/temp/M192.cpp>
   -<src/gcode/units/G20_G21.cpp>