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/simueeprom.cpp

@@ -134,7 +134,11 @@ void eepromWriteBlock(uint8_t * buffer, size_t address, size_t size)
   eepromStartWrite(buffer, address, size);
 
   while (!eepromIsTransferComplete()) {
+#if defined(GTESTS)
+    sleep(0/*ms*/);
+#else
     sleep(1/*ms*/);
+#endif
   }
 }