Arduino core for the esp32 - Add new function "bool isDirty()" to EEPROM.h and EEPROM.cpp (#9611)

* Update EEPROM.h - Added new function: bool isDirty()

* Update EEPROM.cpp - Added new function: bool isDirty()

Author: Rob58329

Diff for: libraries/EEPROM/src/EEPROM.cpp

@@ -133,6 +133,10 @@ void EEPROMClass::end() {
   _handle = 0;
 }
 
+bool EEPROMClass::isDirty() {
+  return _dirty;
+}
+
 uint8_t EEPROMClass::read(int address) {
   if (address < 0 || (size_t)address >= _size) {
     return 0;

Diff for: libraries/EEPROM/src/EEPROM.h

@@ -45,6 +45,7 @@ class EEPROMClass {
   uint16_t length();
   bool commit();
   void end();
+  bool isDirty();
 
   uint8_t *getDataPtr();
   uint16_t convert(bool clear, const char *EEPROMname = "eeprom", const char *nvsname = "eeprom");