Add temperature-based auto power options (#14397)

Marlin/src/feature/power.cpp

@@ -94,6 +94,14 @@ bool Power::is_power_needed() {
     if (thermalManager.degTargetBed() > 0) return true;
   #endif
 
+  #if HOTENDS && AUTO_POWER_E_TEMP
+    HOTEND_LOOP() if (thermalManager.degHotend(e) >= AUTO_POWER_E_TEMP) return true;
+  #endif
+
+  #if HAS_HEATED_CHAMBER && AUTO_POWER_CHAMBER_TEMP
+    if (thermalManager.degChamber() >= AUTO_POWER_CHAMBER_TEMP) return true;
+  #endif
+
   return false;
 }