Projectkk2glider/simu tmp sd path (#4231)

* Re #4224: Introduced settingsPath and use std::string for paths in simpgmspace.

* Re #4224: Relevant parts of simpgmspace.cpp moved into simufatfs.cpp and simudisk.cpp

* Removed "/" from "mask_monitor_logsw.png"

* Re #4224: findTrueFileName() refactoring

* Faster gtests (less waiting for eeprom operations to finish)

* Re #4224: Radio settings and models directories now taken from alternate path (if set) [simu]

* Fixes #3322: together with previous changes to the SD browser this prevents the simulator from browsing higher than SD card root path.

* f_chdir() debug traces

radio/src/targets/simu/opentxsimulator.cpp

@@ -58,12 +58,10 @@ OpenTxSimulator::OpenTxSimulator()
 {
 }
 
-void OpenTxSimulator::setSdPath(const QString &sdPath)
+void OpenTxSimulator::setSdPath(const QString & sdPath, const QString & settingsPath)
 {
-#if defined(SDCARD)
-  strncpy(simuSdDirectory, sdPath.toLatin1().constData(), sizeof(simuSdDirectory)-1);
-  simuSdDirectory[sizeof(simuSdDirectory)-1] = '\0';
-#endif
+  simuSdDirectory = sdPath;
+  simuSettingsDirectory = settingsPath;
 }
 
 void OpenTxSimulator::setVolumeGain(int value)
@@ -106,7 +104,7 @@ void OpenTxSimulator::start(const char * filename, bool tests)
 
   StartEepromThread(filename);
   StartAudioThread(volumeGain);
-  StartSimu(tests);
+  StartSimu(tests, simuSdDirectory.toLatin1().constData(), simuSettingsDirectory.toLatin1().constData());
 }
 
 void OpenTxSimulator::stop()