{Companion] Unload simulator libraries after each use -- reset all statically initialized firmware variables. (#4655)

* [simulatormainwindow] Move sub-window destructors to main destructor.

* [simulation] Move SimulatorInterface creation/ownership to SimulatorMainWindow.

* [simulation] Add option to unload simulator libraries after each use (eg. from Companion) so as to properly reset all statically initialized firmware variables; Introduce new SimulatorLoader class.

companion/src/customdebug.cpp

@@ -22,15 +22,19 @@
 
 Q_LOGGING_CATEGORY(eepromImport, "eeprom.import")
 
+Q_LOGGING_CATEGORY(simulatorInterfaceLoader, "simulator.interface.loader")
+
 void CustomDebug::setFilterRules()
 {
   QString rules;
   rules.append("eeprom.import=");
 #if defined(DEBUG_STORAGE_IMPORT)
-  rules.append("true");
+  rules.append("true\n");
 #else
-  rules.append("false");
+  rules.append("false\n");
 #endif
 
+  rules.append("simulator.interface.*=true\n");
+
   QLoggingCategory::setFilterRules(rules);
 }